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			1800 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			ReStructuredText
		
	
	
	
	
	
| OpenSSL-APIs 
 | |
| ------------
 | |
| 
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| The code of this API (located in :component:`openssl` directory), does not contain OpenSSL itself but is intended as a wrapper for applications using the OpenSSL API.
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| It uses mbedTLS to do the actual work, so anyone compiling openssl code needs the mbedtls library and header file.
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| 
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| OpenSSL APIs not mentioned in this article are not open to public for the time,
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| also do not have the corresponding function.
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| If user calls it directly, it will always return an error or may show cannot link at compiling time.
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| 
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| Chapter Introduction
 | |
| ====================
 | |
| 
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| - Chapter 1. SSL Context Method Create
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| - Chapter 2. SSL Context Function
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| - Chapter 3. SSL Function
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| - Chapter 4. SSL X509 Certification and Private Key Function
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| 
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| 
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| Chapter 1. SSL Context Method Create 
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| ====================================
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| 
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| .. highlight:: none
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| 
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| 1.1 const SSL_METHOD* ``SSLv3_client_method`` (void)
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| 
 | |
|     Arguments::
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|     
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|         none
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|     
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|     Return::
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|     
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|         SSLV3.0 version SSL context client method point
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|     
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|     Description::
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|     
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|         create the target SSL context method
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             const SSL_METHOD *method = SSLv3_client_method();
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|  
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|             ...
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|         }
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| 
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| 1.2 const SSL_METHOD* ``TLSv1_client_method`` (void)
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| 
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|     Arguments::
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|     
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|         none
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|     
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|     Return::
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|     
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|         TLSV1.0 version SSL context client method point
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|     
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|     Description::
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|     
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|         create the target SSL context method
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             const SSL_METHOD *method = TLSv1_client_method();
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|  
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|             ...
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|         }
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| 
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| 1.3 const SSL_METHOD* ``TLSv1_1_client_method`` (void)
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| 
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|     Arguments::
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|     
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|         none
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|     
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|     Return::
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|     
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|         TLSV1.1 version SSL context client method point
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|     
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|     Description::
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|     
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|         create the target SSL context method
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             const SSL_METHOD *method = TLSv1_1_client_method();
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|  
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|             ...
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|         }
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| 
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| 1.4 const SSL_METHOD* ``TLSv1_2_client_method`` (void)
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| 
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|     Arguments::
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|     
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|        none
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|     
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|     Return::
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|     
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|        TLSV1.2 version SSL context client method point
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|     
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|     Description::
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|     
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|        create the target SSL context method
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             const SSL_METHOD *method = TLSv1_2_client_method();
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|  
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|             ...
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|         }
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|         
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| 1.5 const SSL_METHOD* ``TLS_client_method`` (void)
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| 
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|     Arguments::
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|     
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|        none
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|     
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|     Return::
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|     
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|        TLSV1.2 version SSL context client method point
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|     
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|     Description::
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|     
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|        create the default SSL context method, it's always to be TLSV1.2
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             const SSL_METHOD *method = TLSv1_2_client_method();
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|  
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|             ...
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|         }        
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| 
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| 1.6 const SSL_METHOD* ``SSLv3_server_method`` (void)
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| 
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|     Arguments::
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|     
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|         none
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|     
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|     Return::
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|     
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|         SSLV3.0 version SSL context server method point
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|     
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|     Description::
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|     
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|         create the target SSL context method
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             const SSL_METHOD *method = SSLv3_server_method();
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|  
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|             ...
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|         }
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| 
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| 1.7 const SSL_METHOD* ``TLSv1_server_method`` (void)
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| 
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|     Arguments::
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|     
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|         none
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|     
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|     Return::
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|     
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|         TLSV1.0 version SSL context server method point
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|     
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|     Description::
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|     
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|         create the target SSL context method
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             const SSL_METHOD *method = TLSv1_server_method();
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|  
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|             ...
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|         }
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| 
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| 1.8 const SSL_METHOD* ``TLSv1_1_server_method`` (void)
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| 
 | |
|     Arguments::
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|     
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|         none
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|     
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|     Return::
 | |
|     
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|         TLSV1.1 version SSL context server method point
 | |
|     
 | |
|     Description::
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|     
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|         create the target SSL context method
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             const SSL_METHOD *method = TLSv1_1_server_method();
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|  
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|             ...
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|         }
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| 
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| 
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| 1.9 const SSL_METHOD* ``TLSv1_2_server_method`` (void)
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| 
 | |
|     Arguments::
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|     
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|         none
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|     
 | |
|     Return::
 | |
|     
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|         TLSV1.2 version SSL context server method point
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|     
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|     Description::
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|     
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|         create the target SSL context method
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             const SSL_METHOD *method = TLSv1_2_server_method();
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|  
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|             ...
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|         }
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| 
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| 1.10 const SSL_METHOD* ``TLS_server_method`` (void)
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| 
 | |
|     Arguments::
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|     
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|         none
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|     
 | |
|     Return::
 | |
|     
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|         TLSV1.2 version SSL context server method point
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|     
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|     Description::
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|     
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|         create the default SSL context method, it's always to be TLSV1.2
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             const SSL_METHOD *method = TLSv1_2_server_method();
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|  
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|             ...
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|         }
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| 
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| 
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| Chapter 2. SSL Context Function
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| ===============================
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| 
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| 
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| 2.1 SSL_CTX* ``SSL_CTX_new`` (const SSL_METHOD * method)
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| 
 | |
|     Arguments::
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|     
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|         method - the SSL context method point
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|     
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|     Return::
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|     
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|         context point
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|     
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|     Description::
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|     
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|         create a SSL context
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             SSL_CTX *ctx = SSL_CTX_new(SSLv3_server_method());
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|  
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|             ...
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|         }
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| 
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| 
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| 2.2 ``void SSL_CTX_free`` (SSL_CTX * ctx)
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| 
 | |
|     Arguments::
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|     
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|         ctx - the SSL context point
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|     
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|     Return::
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|     
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|         none
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|     
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|     Description::
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|     
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|         free a SSL context
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|     
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|     Example::
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|     
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|         void example(void)
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|         {
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|             SSL_CTX *ctx;
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|         
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|             ... ...
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|             
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|             SSL_CTX_free(ctx);
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|         }
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| 
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| 
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| 2.3 ``int SSL_CTX_set_ssl_version`` (SSL_CTX * ctx, const SSL_METHOD * meth)
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| 
 | |
|     Arguments::
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|     
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|         ctx  - SSL context point
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|         meth - SSL method point
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|     
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|     Return::
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|     
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|         1 : OK
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|         0 : failed
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|     
 | |
|     Description::
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|     
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|         set the SSL context version
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|     
 | |
|     Example::
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|     
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|         void example(void)
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|         {
 | |
|             SSL_CTX *ctx;
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|             const SSL_METHOD *meth;
 | |
|             
 | |
|             ... ...
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|             
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|             SSL_CTX_set_ssl_version(ctx, meth);    
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|         }
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| 
 | |
| 
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| 2.4 const SSL_METHOD* ``SSL_CTX_get_ssl_method`` (SSL_CTX * ctx)
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| 
 | |
|     Arguments::
 | |
|     
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|         ctx - SSL context point
 | |
|     
 | |
|     Return::
 | |
|     
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|         SSL context method
 | |
|     
 | |
|     Description::
 | |
|     
 | |
|         get the SSL context method
 | |
|     
 | |
|     Example::
 | |
|     
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|         void example(void)
 | |
|         {
 | |
|             const SSL_METHOD *method;
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|             SSL_CTX *ctx;
 | |
|             
 | |
|             ... ...
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|                 
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|             method = SSL_CTX_get_ssl_method(ctx);    
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|         }
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| 
 | |
| 
 | |
| 
 | |
| Chapter 3. SSL Function
 | |
| =======================
 | |
| 
 | |
| 
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| 3.1 SSL* ``SSL_new`` (SSL_CTX * ctx)
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| 
 | |
|     Arguments::
 | |
|     
 | |
|         ctx - SSL context point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         SSL method
 | |
|     
 | |
|     Description::
 | |
|     
 | |
|         create a SSL
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
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|             SSL *ssl;
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|             SSL_CTX *ctx;
 | |
| 
 | |
|             ... ...
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|    
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|             ssl = SSL_new(ctx);
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|         }
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| 
 | |
| 
 | |
| 3.2 void ``SSL_free`` (SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         none
 | |
|     
 | |
|     Description::
 | |
|     
 | |
|         free SSL
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             SSL_free(ssl);
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|         }
 | |
|         
 | |
| 
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| 3.3 int ``SSL_do_handshake`` (SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed, connect is close by remote
 | |
|        -1 : a error catch
 | |
|     
 | |
|     Description::
 | |
|     
 | |
|         perform the SSL handshake
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
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|             int ret;
 | |
|             
 | |
|             ... ...
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|             
 | |
|             ret = SSL_do_handshake(ssl);
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|         }
 | |
| 
 | |
| 
 | |
| 3.4 int ``SSL_connect`` (SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed, connect is close by remote
 | |
|        -1 : a error catch
 | |
|     
 | |
|     Description::
 | |
|     
 | |
|         connect to the remote SSL server
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             int ret;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_connect(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.5 int ``SSL_accept`` (SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed, connect is close by remote
 | |
|        -1 : a error catch
 | |
|     
 | |
|     Description::
 | |
|     
 | |
|         accept the remote connection
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             int ret;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_accept(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.6 int ``SSL_shutdown`` (SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed, connect is close by remote
 | |
|        -1 : a error catch
 | |
|     
 | |
|     Description::
 | |
|     
 | |
|         shutdown the connection
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             int ret;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_shutdown(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.7 int ``SSL_clear`` (SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         shutdown the connection
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             int ret;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_clear(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.8 int ``SSL_read`` (SSL * ssl, void * buffer, int len)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl    - point
 | |
|         buffer - data buffer point
 | |
|         len    - data length
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         > 0 : OK, and return received data bytes
 | |
|         = 0 : no data received or connection is closed
 | |
|         < 0 : an error catch
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         read data from remote
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             char *buf;
 | |
|             int len;
 | |
|             int ret;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_read(ssl, buf, len);
 | |
|         }
 | |
| 
 | |
| 3.9 int ``SSL_write`` (SSL * ssl, const void * buffer, int len)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl    - SSL point
 | |
|         buffer - data buffer point
 | |
|         len    - data length
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         > 0 : OK, and return received data bytes
 | |
|         = 0 : no data sent or connection is closed
 | |
|         < 0 : an error catch
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         send the data to remote
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             char *buf;
 | |
|             int len;
 | |
|             int ret;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_write(ssl, buf, len);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.10 ``SSL_CTX *SSL_get_SSL_CTX`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         SSL context
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get SSL context of the SSL
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             SSL_CTX *ctx;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ctx = SSL_get_SSL_CTX(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.11 int ``SSL_get_shutdown`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         shutdown mode
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get SSL shutdown mode
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             int mode;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             mode = SSL_get_SSL_CTX(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.12 void ``SSL_set_shutdown`` (SSL * ssl, int mode)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         shutdown mode
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         set SSL shutdown mode
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             int mode = 0;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             SSL_set_shutdown(ssl, mode);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.13 const SSL_METHOD* ``SSL_get_ssl_method`` (SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         SSL method
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         set SSL shutdown mode
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             const SSL_METHOD *method;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             method = SSL_get_ssl_method(ssl);
 | |
|         }
 | |
|         
 | |
| 
 | |
| 3.14 int ``SSL_set_ssl_method`` (SSL * ssl, const SSL_METHOD * method)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl  - SSL point
 | |
|         meth - SSL method point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         set the SSL method
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL *ssl;
 | |
|             const SSL_METHOD *method;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_set_ssl_method(ssl, method);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.15 int ``SSL_pending`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         data bytes
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get received data bytes
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL *ssl;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_pending(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.16 int ``SSL_has_pending`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : Yes
 | |
|         0 : No
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         check if data is received
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL *ssl;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_has_pending(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.17 int ``SSL_get_fd`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         >= 0 : socket id
 | |
|          < 0 : a error catch
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the socket of the SSL
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL *ssl;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_get_fd(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.18 int ``SSL_get_rfd`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         >= 0 : socket id
 | |
|          < 0 : a error catch
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the read only socket of the SSL
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL *ssl;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_get_rfd(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.19 int ``SSL_get_wfd`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         >= 0 : socket id
 | |
|          < 0 : a error catch
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the write only socket of the SSL
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL *ssl;
 | |
|             
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_get_wfd(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.20 int ``SSL_set_fd`` (SSL * ssl, int fd)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|         fd  - socket id
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         set socket to SSL
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL *ssl;
 | |
|             int socket;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_set_fd(ssl, socket);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.21 int ``SSL_set_rfd`` (SSL * ssl, int fd)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|         fd  - socket id
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         set read only socket to SSL
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL *ssl;
 | |
|             int socket;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_set_rfd(ssl, socket);
 | |
|         }
 | |
|         
 | |
| 
 | |
| 3.22 int ``SSL_set_wfd`` (SSL * ssl, int fd)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|         fd  - socket id
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         set write only socket to SSL
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL *ssl;
 | |
|             int socket;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_set_wfd(ssl, socket);
 | |
|         }
 | |
|         
 | |
| 
 | |
| 3.23 int ``SSL_version`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         SSL version
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get SSL version
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int version;
 | |
|             SSL *ssl;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             version = SSL_version(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.24 const char* ``SSL_get_version`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         SSL version string
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the SSL current version string
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             char *version;
 | |
|             SSL *ssl;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             version = SSL_get_version(ssl);
 | |
|         }
 | |
|         
 | |
|         
 | |
| 3.25 OSSL_HANDSHAKE_STATE ``SSL_get_state`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         SSL state
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the SSL state
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             OSSL_HANDSHAKE_STATE state;
 | |
|             SSL *ssl;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             state = SSL_get_state(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.26 const char* ``SSL_alert_desc_string`` (int value)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         value - SSL description
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         alert value string
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get alert description string
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int val;
 | |
|             char *str;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             str = SSL_alert_desc_string(val);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.27 const char* ``SSL_alert_desc_string_long`` (int value)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         value - SSL description
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         alert value long string
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get alert description long string
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int val;
 | |
|             char *str;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             str = SSL_alert_desc_string_long(val);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.28 const char* ``SSL_alert_type_string`` (int value)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         value - SSL type description
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         alert type string
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get alert type string
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int val;
 | |
|             char *str;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             str = SSL_alert_type_string(val);
 | |
|         }
 | |
|         
 | |
|         
 | |
| 3.29 const char* ``SSL_alert_type_string_long`` (int value)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         value - SSL type description
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         alert type long string
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get alert type long string
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int val;
 | |
|             char *str;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             str = SSL_alert_type_string_long(val);
 | |
|         }
 | |
| 
 | |
| 3.30 const char* ``SSL_rstate_string`` (SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         state string
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the state string where SSL is reading
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             char *str;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             str = SSL_rstate_string(ssl);
 | |
|         }
 | |
|         
 | |
| 
 | |
| 3.31 const char* ``SSL_rstate_string_long`` (SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         state long string
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the state long string where SSL is reading
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             char *str;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             str = SSL_rstate_string_long(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.32 const char* ``SSL_state_string`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         state string
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the state string
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             const char *str;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             str = SSL_state_string(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.33 char* ``SSL_state_string_long`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         state long string
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the state long string
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             char *str;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             str = SSL_state_string(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.34 int ``SSL_get_error`` (const SSL * ssl, int ret_code)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl      - SSL point
 | |
|         ret_code - SSL return code
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         SSL error number
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get SSL error code
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             int ret;
 | |
|             int err;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             err = SSL_get_error(ssl, ret);
 | |
|         }
 | |
| 
 | |
| 3.35 int ``SSL_want`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         specifical statement
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the SSL specifical statement
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             int state;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             state = SSL_want(ssl);
 | |
|         }
 | |
|         
 | |
| 
 | |
| 3.36 int ``SSL_want_nothing`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         0 : false
 | |
|         1 : true
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         check if SSL want nothing
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             int ret;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_want(ssl);
 | |
|         }
 | |
|         
 | |
|         
 | |
| 3.37 int ``SSL_want_read`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         0 : false
 | |
|         1 : true
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         check if SSL want to read
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             int ret;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_want_read(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 3.38 int ``SSL_want_write`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         0 : false
 | |
|         1 : true
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         check if SSL want to write
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             int ret;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_want_write(ssl);
 | |
|         }        
 | |
| 
 | |
| 
 | |
| Chapter 4. SSL X509 Certification and Private Key Function
 | |
| ==========================================================
 | |
| 
 | |
| 
 | |
| 4.1 X509 * ``d2i_X509`` (X509 ** cert, const unsigned char * buffer, long len)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         cert   - a point pointed to X509 certification
 | |
|         buffer - a point pointed to the certification context memory point
 | |
|         length - certification bytes
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         X509 certification object point
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         load a character certification context into system context. If '*cert' is pointed to the
 | |
|         certification, then load certification into it. Or create a new X509 certification object
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             X509 *new;
 | |
|             X509 *cert;
 | |
|             unsigned char *buffer;
 | |
|             long len;            
 | |
|             ... ...
 | |
|             
 | |
|             new = d2i_X509(&cert, buffer, len);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 4.2 int ``SSL_add_client_CA`` (SSL * ssl, X509 * x)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|         x   - CA certification point
 | |
|     
 | |
|     Return::
 | |
| 
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         add CA client certification into the SSL
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL *ssl;
 | |
|             X509 *new;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_add_client_CA(ssl, new);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 4.3 int ``SSL_CTX_add_client_CA`` (SSL_CTX * ctx, X509 * x)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ctx - SSL context point
 | |
|          x   - CA certification point
 | |
|     
 | |
|     Return::
 | |
| 
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         add CA client certification into the SSL context
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL_CTX *ctx;
 | |
|             X509 *new;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_add_clSSL_CTX_add_client_CAient_CA(ctx, new);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 4.4 X509* ``SSL_get_certificate`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         SSL certification point
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the SSL certification point
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             X509 *cert;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             cert = SSL_get_certificate(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 4.5 long ``SSL_get_verify_result`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         the result of verifying
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get the verifying result of the SSL certification
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             long ret;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_get_verify_result(ssl);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 4.6 int ``SSL_CTX_use_certificate`` (SSL_CTX * ctx, X509 * x)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ctx  - the SSL context point
 | |
|         pkey - certification object point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         load the certification into the SSL_CTX or SSL object
 | |
|  
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL_CTX *ctx
 | |
|             X509 *new;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_CTX_use_certificate(ctx, new);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 4.7 int ``SSL_CTX_use_certificate_ASN1`` (SSL_CTX * ctx, int len, const unsigned char * d)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ctx - SSL context point
 | |
|         len - certification length
 | |
|         d   - data point
 | |
|     
 | |
|     Return::
 | |
|      
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         load the ASN1 certification into SSL context
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL_CTX *ctx;
 | |
|             const unsigned char *buf;
 | |
|             int len;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_CTX_use_certificate_ASN1(ctx, len, buf);
 | |
|         }
 | |
|         
 | |
| 
 | |
| 4.8 int ``SSL_CTX_use_PrivateKey`` (SSL_CTX * ctx, EVP_PKEY * pkey)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ctx - SSL context point
 | |
|         pkey - private key object point
 | |
|     
 | |
|     Return::
 | |
| 
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         load the private key into the context object
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL_CTX *ctx;
 | |
|             EVP_PKEY *pkey;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_CTX_use_PrivateKey(ctx, pkey);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 4.9 int ``SSL_CTX_use_PrivateKey_ASN1`` (int pk, SSL_CTX * ctx, const unsigned char * d,  long len)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ctx - SSL context point
 | |
|         d   - data point
 | |
|         len - private key length
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         load the ASN1 private key into SSL context
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             int pk;
 | |
|             SSL_CTX *ctx;
 | |
|             const unsigned char *buf;
 | |
|             long len;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_CTX_use_PrivateKey_ASN1(pk, ctx, buf, len);
 | |
|         }
 | |
|         
 | |
| 
 | |
| 4.10 int ``SSL_CTX_use_RSAPrivateKey_ASN1`` (SSL_CTX * ctx, const unsigned char * d, long len)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ctx - SSL context point
 | |
|         d   - data point
 | |
|         len - private key length
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         load the RSA ASN1 private key into SSL context
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL_CTX *ctx;
 | |
|             const unsigned char *buf;
 | |
|             long len;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_CTX_use_RSAPrivateKey_ASN1(ctx, buf, len);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 4.11 int ``SSL_use_certificate_ASN1`` (SSL * ssl, int len, const unsigned char * d)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|         len - data bytes
 | |
|         d   - data point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         1 : OK
 | |
|         0 : failed
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         load certification into the SSL
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             int ret;
 | |
|             SSL *ssl;
 | |
|             const unsigned char *buf;
 | |
|             long len;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             ret = SSL_use_certificate_ASN1(ssl, len, buf);
 | |
|         }
 | |
| 
 | |
| 
 | |
| 4.12 X509* ``SSL_get_peer_certificate`` (const SSL * ssl)
 | |
| 
 | |
|     Arguments::
 | |
|     
 | |
|         ssl - SSL point
 | |
|     
 | |
|     Return::
 | |
|     
 | |
|         peer certification
 | |
|         
 | |
|     Description::
 | |
|     
 | |
|         get peer certification
 | |
|     
 | |
|     Example::
 | |
|     
 | |
|         void example(void)
 | |
|         {
 | |
|             SSL *ssl;
 | |
|             X509 *peer;
 | |
|                         
 | |
|             ... ...
 | |
|             
 | |
|             peer = SSL_get_peer_certificate(ssl);
 | |
|         }
 | |
| 
 |