method

hexdigest

v2_6_3 - Show latest stable - Class: OpenSSL::HMAC

hexdigest(p1, p2, p3)

public

Returns the authentication code as a hex-encoded string. The digest parameter specifies the digest algorithm to use. This may be a String representing the algorithm name or an instance of OpenSSL::Digest.

Example

key = 'key'
data = 'The quick brown fox jumps over the lazy dog'

hmac = OpenSSL::HMAC.hexdigest('sha1', key, data)
#=> "de7c9b85b8b78aa6bc8a7a36f70a90701c9db4d9"

static VALUE
ossl_hmac_s_hexdigest(VALUE klass, VALUE digest, VALUE key, VALUE data)
{
    unsigned char buf[EVP_MAX_MD_SIZE];
    unsigned int buf_len;
    VALUE ret;

    StringValue(key);
    StringValue(data);

    if (!HMAC(ossl_evp_get_digestbyname(digest), RSTRING_PTR(key),
              RSTRING_LENINT(key), (unsigned char *)RSTRING_PTR(data),
              RSTRING_LEN(data), buf, &buf_len))
        ossl_raise(eHMACError, "HMAC");

    ret = rb_str_new(NULL, buf_len * 2);
    ossl_bin2hex(buf, RSTRING_PTR(ret), buf_len);

    return ret;
}

hexdigest

Example

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