diff options
Diffstat (limited to 'ext/openssl/lib/openssl.rb')
| -rw-r--r-- | ext/openssl/lib/openssl.rb | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/ext/openssl/lib/openssl.rb b/ext/openssl/lib/openssl.rb index 8a342f15b6..98fa8d39f2 100644 --- a/ext/openssl/lib/openssl.rb +++ b/ext/openssl/lib/openssl.rb @@ -7,28 +7,32 @@ = Licence This program is licensed under the same licence as Ruby. - (See the file 'LICENCE'.) + (See the file 'COPYING'.) =end require 'openssl.so' require_relative 'openssl/bn' -require_relative 'openssl/pkey' require_relative 'openssl/cipher' require_relative 'openssl/digest' require_relative 'openssl/hmac' -require_relative 'openssl/x509' -require_relative 'openssl/ssl' require_relative 'openssl/pkcs5' +require_relative 'openssl/pkey' +require_relative 'openssl/ssl' require_relative 'openssl/version' +require_relative 'openssl/x509' module OpenSSL - # call-seq: - # OpenSSL.secure_compare(string, string) -> boolean + # :call-seq: + # OpenSSL.secure_compare(string, string) -> true or false # # Constant time memory comparison. Inputs are hashed using SHA-256 to mask # the length of the secret. Returns +true+ if the strings are identical, # +false+ otherwise. + # + # This method is expensive due to the SHA-256 hashing. In most cases, where + # the input lengths are known to be equal or are not sensitive, + # OpenSSL.fixed_length_secure_compare should be used instead. def self.secure_compare(a, b) hashed_a = OpenSSL::Digest.digest('SHA256', a) hashed_b = OpenSSL::Digest.digest('SHA256', b) |