trojkac
/ openssl_pkey_rsa_from_json_web_key.rb
Last active
October 31, 2023 02:07
Getting OpenSSL::PKey::RSA from base64 encoded modulus and exponent in JSON Web Key format
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| e = "AQAB" | |
| n = "lxrwmuYSAsTfn-lUu4goZSXBD9ackM9OJuwUVQHmbZo6GW4Fu_auUdN5zI7Y1dEDfgt7m7QXWbHuMD01HLnD4eRtY-RNwCWdjNfEaY_esUPY3OVMrNDI15Ns13xspWS3q-13kdGv9jHI28P87RvMpjz_JCpQ5IM44oSyRnYtVJO-320SB8E2Bw92pmrenbp67KRUzTEVfGU4-obP5RZ09OxvCr1io4KJvEOjDJuuoClF66AT72WymtoMdwzUmhINjR0XSqK6H0MdWsjw7ysyd_JhmqX5CAaT9Pgi0J8lU_pcl215oANqjy7Ob-VMhug9eGyxAWVfu_1u6QJKePlE-w" | |
| decoded_exponent = Base64.urlsafe_decode64(e) | |
| decoded_modulus = Base64.urlsafe_decode64(n) | |
| e = OpenSSL::BN.new(decoded_exponent, 2) | |
| n = OpenSSL::BN.new(decoded_modulus, 2) | |
| OpenSSL::PKey::RSA.new.set_key(n, e, nil) |
wteuber
/ encrypt_decrypt.rb
Last active
April 30, 2025 19:20
Simply encrypt and decrypt Strings in Ruby.
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| require 'openssl' | |
| class String | |
| def encrypt(key) | |
| cipher = OpenSSL::Cipher.new('DES-EDE3-CBC').encrypt | |
| cipher.key = Digest::SHA1.hexdigest key | |
| s = cipher.update(self) + cipher.final | |
| s.unpack('H*')[0].upcase | |
| end |