Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →
instance method
OpenSSL::HMAC#digest
() -> ::String
hmac.digest → string
ext/openssl/ossl_hmac.c
View on GitHub ↗
static VALUE
ossl_hmac_digest(VALUE self)
{
EVP_MD_CTX *ctx;
size_t buf_len = EVP_MAX_MD_SIZE;
VALUE ret;
GetHMAC(self, ctx);
ret = rb_str_new(NULL, EVP_MAX_MD_SIZE);
if (EVP_DigestSignFinal(ctx, (unsigned char *)RSTRING_PTR(ret),
&buf_len) != 1)
ossl_raise(eHMACError, "EVP_DigestSignFinal");
rb_str_set_len(ret, (rb_len_t)buf_len);
return ret;
}
Returns the authentication code an instance represents as a binary string.
Example
Example
instance = OpenSSL::HMAC.new('key', 'SHA1') #=> f42bb0eeb018ebbd4597ae7213711ec60760843f instance.digest #=> "\xF4+\xB0\xEE\xB0\x18\xEB\xBDE\x97\xAEr\x13q\x1E\xC6\a`\x84?"