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Jenkins script console decrypt base64 encoded string
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| //http://www.mysamplecode.com/2011/08/java-rsa-encrypt-string-using-bouncy.html | |
| import jenkins.bouncycastle.api.PEMEncodable | |
| import static jenkins.bouncycastle.api.PEMEncodable.decode | |
| import hudson.util.Secret | |
| import java.util.Base64 | |
| import org.bouncycastle.crypto.engines.RSAEngine | |
| import org.bouncycastle.crypto.AsymmetricBlockCipher | |
| import org.bouncycastle.crypto.params.AsymmetricKeyParameter | |
| import org.bouncycastle.crypto.util.PrivateKeyFactory | |
| String encrypted_string = "Tye2N35iNoSe0ixZ0GnNHvjo4RvDLx2qq/NhFcq8tLVqOiVVX2HacdpijFdS1MkOQvk9sylNbcXNTW2yvXXFjyPLmTwxQPl9z7Eymfz37QsGy57TQURFikVIrOrrlw8f30Fizk23JnmI20fWgbv157o6CTWPC314jHE/Xy+kSF0=" | |
| String priv_key = ''' | |
| -----BEGIN RSA PRIVATE KEY----- | |
| MIICXQIBAAKBgQCmDT2vGthvevV7QbZygYowDsIfmpFFDyAl5UmF3aDFxgKnFrQW | |
| Ro0tc/mjo0sJC3w4DH3/oe0EQPYqL5bzCDSE4dTiA5i26dwvROQGFpOvh9ks4691 | |
| zoJ/yUnBDD1DxZh0CC4jzb1OBfp1VnF9pGAMXHzor7LLnKUXWnf+PLKJ4wIDAQAB | |
| AoGBAKF5KszGvEXcOi87/aFoGusUzu1Qr4eKZ+ayC0cj+B2aqiW1zDYFMXBL4Syh | |
| tGv9QTR34WbfHc8PJNJtKMr45afpAJRIZsckWhijgIvfbudp2VmA8fiqhlfYSPA7 | |
| XXAIS86npR+t5lvR0Fk8CnDXaDrlBC2W3lIOoT/IN19iLcRxAkEA2xWNJwPX99aA | |
| XBh4yXWKW2dwBJigdVK2Ml0QLGkqf6WoYeQJTxUBUHRGCGibO/8PzwKTZEKhkAQQ | |
| ES0fOwm6tQJBAMIIEr8uZoE4q534gQy0+Fl4oBviPr43g7t5w5WELhL1O+a8/ao/ | |
| ybEQjmyvcIUWcmWV1K0GtSkQUgDvQRP42TcCQQChplE0DF35/EdRrKzS2Otxbez1 | |
| NziN2K2ek5QvcJlu/egz8nH769/AYUqbQbPonNYpRBlEzPUwsg643bZBdXhRAkB0 | |
| GHqHE89XcD4XVjJ5FOsoNamvJW8fR341tYSWOLGMvFksFVa+AE7A+EQPueVcbHLk | |
| X4MSSForCM3YK0/IEHR/AkAuFScon0cc1Z3gIPlQg0dNDMDlnT9cyC4C7EwU4CKN | |
| APzykkuomc5jpgtKw9o3AJsITlLMrMlO8a7vLdrT/5WO | |
| -----END RSA PRIVATE KEY----- | |
| '''.trim() | |
| Secret p = Secret.fromString('') | |
| // https://howtodoinjava.com/java-8/base64-encoding-and-decoding-example-in-java-8/ | |
| AsymmetricBlockCipher e = new RSAEngine() | |
| e = new org.bouncycastle.crypto.encodings.PKCS1Encoding(e) | |
| key_pair = decode(priv_key, ((p)? p.plainText : null) as char[]) | |
| key = key_pair.toPrivateKey() | |
| AsymmetricKeyParameter privateKey = (AsymmetricKeyParameter) PrivateKeyFactory.createKey(key.encoded) | |
| e.init(false, privateKey) | |
| byte[] messageBytes = Base64.decoder.decode(encrypted_string) | |
| byte[] hexEncodedCipher = e.processBlock(messageBytes, 0, messageBytes.length) | |
| outputData = new String(hexEncodedCipher) | |
| println outputData |
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This research was incorporated into my Jervis project. https://github.com/samrocketman/jervis/blob/jervis-1.0/src/main/groovy/net/gleske/jervis/tools/securityIO.groovy#L45-L60