mirror of https://github.com/wolfSSL/wolfssl
Merge pull request #1550 from dgarske/rsaverify
Check returned size matches signature size for RSA verify in openssl compatibility
This commit is contained in:
commit
b5e0499022
18
src/ssl.c
18
src/ssl.c
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@ -24115,25 +24115,25 @@ int wolfSSL_RSA_verify(int type, const unsigned char* m,
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unsigned int len;
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WOLFSSL_ENTER("wolfSSL_RSA_verify");
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if((m == NULL) || (sig == NULL)) {
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if ((m == NULL) || (sig == NULL)) {
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WOLFSSL_MSG("Bad function arguments");
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return WOLFSSL_FAILURE;
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}
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sigRet = (unsigned char *)XMALLOC(sigLen, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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if(sigRet == NULL){
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if (sigRet == NULL) {
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WOLFSSL_MSG("Memory failure");
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return WOLFSSL_FAILURE;
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}
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sigDec = (unsigned char *)XMALLOC(sigLen, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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if(sigDec == NULL){
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if (sigDec == NULL) {
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WOLFSSL_MSG("Memory failure");
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XFREE(sigRet, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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return WOLFSSL_FAILURE;
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}
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/* get non-encrypted signature to be compared with decrypted sugnature*/
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ret = wolfSSL_RSA_sign_ex(type, m, mLen, sigRet, &len, rsa, 0);
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if(ret <= 0){
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if (ret <= 0) {
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WOLFSSL_MSG("Message Digest Error");
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XFREE(sigRet, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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XFREE(sigDec, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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@ -24141,8 +24141,9 @@ int wolfSSL_RSA_verify(int type, const unsigned char* m,
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}
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show("Encoded Message", sigRet, len);
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/* decrypt signature */
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ret = wc_RsaSSL_Verify(sig, sigLen, (unsigned char *)sigDec, sigLen, (RsaKey*)rsa->internal);
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if(ret <= 0){
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ret = wc_RsaSSL_Verify(sig, sigLen, (unsigned char *)sigDec, sigLen,
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(RsaKey*)rsa->internal);
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if (ret <= 0) {
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WOLFSSL_MSG("RSA Decrypt error");
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XFREE(sigRet, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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XFREE(sigDec, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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@ -24150,12 +24151,13 @@ int wolfSSL_RSA_verify(int type, const unsigned char* m,
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}
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show("Decrypted Signature", sigDec, ret);
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if(XMEMCMP(sigRet, sigDec, ret) == 0){
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if ((int)len == ret && XMEMCMP(sigRet, sigDec, ret) == 0) {
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WOLFSSL_MSG("wolfSSL_RSA_verify success");
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XFREE(sigRet, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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XFREE(sigDec, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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return WOLFSSL_SUCCESS;
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} else {
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}
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else {
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WOLFSSL_MSG("wolfSSL_RSA_verify failed");
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XFREE(sigRet, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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XFREE(sigDec, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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