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@ -281,6 +281,7 @@ static unsigned char *HKDF_Expand(const EVP_MD *evp_md, |
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unsigned char *okm, size_t okm_len) |
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{ |
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HMAC_CTX *hmac; |
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unsigned char *ret = NULL; |
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unsigned int i; |
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@ -330,11 +331,10 @@ static unsigned char *HKDF_Expand(const EVP_MD *evp_md, |
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done_len += copy_len; |
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} |
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HMAC_CTX_free(hmac); |
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return okm; |
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ret = okm; |
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err: |
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OPENSSL_cleanse(prev, sizeof(prev)); |
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HMAC_CTX_free(hmac); |
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return NULL; |
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return ret; |
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} |