_PKEY_verify_init(EVP_PKEY_CTX *ctx);
int EVP_PKEY_verify_init_ex(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[]);
int EVP_PKEY_verify(EVP_PKEY_CTX *ctx,
                    const unsigned char *sig, size_t siglen,
                    const unsigned char *tbs, size_t tbslen);</code></pre>

<h1 id="DESCRIPTION">DESCRIPTION</h1>

<p>EVP_PKEY_verify_init() initializes a public key algorithm context <i>ctx</i> for signing using the algorithm given when the context was created using <a href="../man3/EVP_PKEY_CTX_n