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Return error when attempting to verify signed data without signers

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This commit is contained in:
Sean Parkinson
2018-10-18 13:44:13 +10:00
parent f7eb8bf080
commit 67bb558025
3 changed files with 84 additions and 78 deletions
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3
wolfcrypt/src/error.c
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@ -497,6 +497,9 @@ const char* wc_GetErrorString(int error)
case ZLIB_DECOMPRESS_ERROR:
return "zlib decompress error";
case PKCS7_NO_SIGNER_E:
return "No signer in PKCS#7 signed data";
default:
return "unknown error number";

5
wolfcrypt/src/pkcs7.c
View File

@ -2132,7 +2132,9 @@ static int PKCS7_VerifySignedData(PKCS7* pkcs7, const byte* hashBuf,
if (GetSet(pkiMsg2, &idx, &length, pkiMsg2Sz) < 0)
return ASN_PARSE_E;
if (length > 0) {
if (length == 0)
return PKCS7_NO_SIGNER_E;
/* Get the sequence of the first signerInfo */
if (GetSequence(pkiMsg2, &idx, &length, pkiMsg2Sz) < 0)
return ASN_PARSE_E;
@ -2212,7 +2214,6 @@ static int PKCS7_VerifySignedData(PKCS7* pkcs7, const byte* hashBuf,
hashBuf, hashSz);
if (ret < 0)
return ret;
}
return 0;
}

4
wolfssl/wolfcrypt/error-crypt.h
View File

@ -220,7 +220,9 @@ enum {
ZLIB_COMPRESS_ERROR = -267, /* zlib compression error */
ZLIB_DECOMPRESS_ERROR = -268, /* zlib decompression error */
WC_LAST_E = -268, /* Update this to indicate last error */
PKCS7_NO_SIGNER_E = -269, /* No signer in PKCS#7 signed data msg */
WC_LAST_E = -269, /* Update this to indicate last error */
MIN_CODE_E = -300 /* errors -101 - -299 */
/* add new companion error id strings for any new error codes