ECDSA_verify

Verifies that the given signature is valid ECDSA signature of the supplied hash value using the specified public key.

Synopsis

Declared in <openssl/ec.h>

[[deprecated]]
int
ECDSA_verify(
    int type,
    unsigned char const* dgst,
    int dgstlen,
    unsigned char const* sig,
    int siglen,
    EC_KEY* eckey);

Warning

Deprecated. Use of this entity is allowed but discouraged.

Return Value

1 if the signature is valid, 0 if the signature is invalid and ‐1 on error

Parameters

Name

Description

type

this parameter is ignored

dgst

pointer to the hash value

dgstlen

length of the hash value

sig

pointer to the DER encoded signature

siglen

length of the DER encoded signature

eckey

EC_KEY object containing a public EC key

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