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Fix to increase maximum DH key size if using fast math and FP_MAX_BITS supports it.

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This commit is contained in:
David Garske
2019-02-08 17:36:40 -08:00
parent e52f4494f0
commit aa21a0e6df
1 changed files with 5 additions and 1 deletions
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6
wolfssl/internal.h
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@ -1110,7 +1110,11 @@ enum {
#define MIN_DHKEY_SZ (WOLFSSL_MIN_DHKEY_BITS / 8) #define MIN_DHKEY_SZ (WOLFSSL_MIN_DHKEY_BITS / 8)
/* set maximum DH key size allowed */ /* set maximum DH key size allowed */
#ifndef WOLFSSL_MAX_DHKEY_BITS #ifndef WOLFSSL_MAX_DHKEY_BITS
#define WOLFSSL_MAX_DHKEY_BITS 4096 #if (defined(USE_FAST_MATH) && defined(FP_MAX_BITS) && FP_MAX_BITS >= 16384)
#define WOLFSSL_MAX_DHKEY_BITS 8192
#else
#define WOLFSSL_MAX_DHKEY_BITS 4096
#endif
#endif #endif
#if (WOLFSSL_MAX_DHKEY_BITS % 8) #if (WOLFSSL_MAX_DHKEY_BITS % 8)
#error DH maximum bit size must be multiple of 8 #error DH maximum bit size must be multiple of 8