I'm using OpenSSL 1.0.1e and attempting to use the EVP_DigestSign*() and
EVP_DigestVerify*() functions from within my C code. I am able to
produce a digital signature using EVP_DigestSignInit(),
EVP_DigestSignUpdate(), and EVP_DigestSignFinal(). However, when I use
the corresponding EVP_DigestVerify*() functions, EVP_DigestVerifyFinal()
fails with:
139731000714920:error:0407006A:rsa routines:
RSA_padding_check_PKCS1_type_1:block type is not 01:rsa_pk1.c:100:
139731000714920:error:04067072:rsa routines:
RSA_EAY_PUBLIC_DECRYPT:padding check failed:rsa_eay.c:721:
I've tried the EVP_Digest{Sign,Verify}Init() functions both with and
without a EVP_PKEY_CTX pointer. When the EVP_PKEY_CTX pointer was
provided, a variety of padding options have been tried, including
RSA_PKCS1_PADDING.
If anyone can provide some guidance on this, I would appreciate it.
--
Thomas J. Pinkl
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