From 11651ab703336744b47174568b168900dd4590e8 Mon Sep 17 00:00:00 2001 From: Yusuke Nakamura Date: Sun, 27 Jun 2021 16:37:18 +0900 Subject: [ruby/openssl] Add example to OpenSSL::KDF.hkdf method (https://github.com/ruby/openssl/pull/447) The values from RFC 5869 https://datatracker.ietf.org/doc/html/rfc5869#appendix-A.1 https://github.com/ruby/openssl/commit/ec14a87f4f --- ext/openssl/ossl_kdf.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'ext/openssl') diff --git a/ext/openssl/ossl_kdf.c b/ext/openssl/ossl_kdf.c index 486e789458..7fa38b865e 100644 --- a/ext/openssl/ossl_kdf.c +++ b/ext/openssl/ossl_kdf.c @@ -163,6 +163,14 @@ kdf_scrypt(int argc, VALUE *argv, VALUE self) * HashLen is the length of the hash function output in octets. * _hash_:: * The hash function. + * + * === Example + * # The values from https://datatracker.ietf.org/doc/html/rfc5869#appendix-A.1 + * ikm = ["0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b"].pack("H*") + * salt = ["000102030405060708090a0b0c"].pack("H*") + * info = ["f0f1f2f3f4f5f6f7f8f9"].pack("H*") + * p OpenSSL::KDF.hkdf(ikm, salt: salt, info: info, length: 42, hash: "SHA256").unpack1("H*") + * # => "3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf34007208d5b887185865" */ static VALUE kdf_hkdf(int argc, VALUE *argv, VALUE self) -- cgit v1.2.3