-
-
Notifications
You must be signed in to change notification settings - Fork 1.6k
/
pkcs5.cr
25 lines (23 loc) · 1017 Bytes
/
pkcs5.cr
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
require "openssl"
require "openssl/algorithm"
module OpenSSL::PKCS5
def self.pbkdf2_hmac_sha1(secret, salt, iterations = 2**16, key_size = 64) : Bytes
buffer = Bytes.new(key_size)
if LibCrypto.pkcs5_pbkdf2_hmac_sha1(secret, secret.bytesize, salt, salt.bytesize, iterations, key_size, buffer) != 1
raise OpenSSL::Error.new "pkcs5_pbkdf2_hmac"
end
buffer
end
def self.pbkdf2_hmac(secret, salt, iterations = 2**16, algorithm : OpenSSL::Algorithm = OpenSSL::Algorithm::SHA1, key_size = 64) : Bytes
{% if compare_versions(LibSSL::OPENSSL_VERSION, "1.0.0") >= 0 %}
evp = algorithm.to_evp
buffer = Bytes.new(key_size)
if LibCrypto.pkcs5_pbkdf2_hmac(secret, secret.bytesize, salt, salt.bytesize, iterations, evp, key_size, buffer) != 1
raise OpenSSL::Error.new "pkcs5_pbkdf2_hmac"
end
buffer
{% else %}
raise OpenSSL::Error.new "Method 'pkcs5_pbkdf2_hmac' not supported with OpenSSL version #{LibSSL::OPENSSL_VERSION}"
{% end %}
end
end