Sign tbs in one call using a prepared DigestSign context.

Synopsis

Declared in <openssl/evp.h>

int
EVP_DigestSign(
    EVP_MD_CTX* ctx,
    unsigned char* sigret,
    size_t* siglen,
    unsigned char const* tbs,
    size_t tbslen);

Return Value

1 on success, or 0 on failure.

Parameters

Name

Description

ctx

Context initialized with EVP_DigestSignInit().

sigret

Output buffer for the signature, or NULL to query the required length.

siglen

On input, size of sigret; on output, signature length.

tbs

Message bytes to sign ("to be signed").

tbslen

Length of tbs in bytes.

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