Reading elliptic curve private key from file with BouncyCastle

by

In addition to the standard JCE approach shown by divanov as long as you give it the correct input (see my comment thereto), or just using JCE in the first place like your selfanswer, BouncyCastle 1.48 up DOES still contain the old PEMReader functionality just organized a bit differently and for this case you can use something like:

static void SO22963581BCPEMPrivateEC () throws Exception {
    Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
    Reader rdr = new StringReader ("-----BEGIN EC PRIVATE KEY-----\n"
            +"MHQCAQEEIDzESrZFmTaOozu2NyiS8LMZGqkHfpSOoI/qA9Lw+d4NoAcGBSuBBAAK\n"
            +"oUQDQgAE7kIqoSQzC/UUXdFdQ9Xvu1Lri7pFfd7xDbQWhSqHaDtj+XY36Z1Cznun\n"
            +"GDxlA0AavdVDuoGXxNQPIed3FxPE3Q==\n"+"-----END EC PRIVATE KEY-----\n");
    Object parsed = new org.bouncycastle.openssl.PEMParser(rdr).readObject();
    KeyPair pair = new org.bouncycastle.openssl.jcajce.JcaPEMKeyConverter().getKeyPair((org.bouncycastle.openssl.PEMKeyPair)parsed);
    System.out.println (pair.getPrivate().getAlgorithm());
}

More Related Contents:

  1. Generate Subject Hash of X509Certificate in Java
  2. How to decrypt file in Java encrypted with openssl command using AES?
  3. How to read .pem file to get private and public key
  4. Load RSA public key from file
  5. Why are the RSA-SHA256 signatures I generate with OpenSSL and Java different?
  6. Converting a Java Keystore into PEM Format
  7. Java equivalent of an OpenSSL AES CBC encryption
  8. Hash String via SHA-256 in Java
  9. Read RSA private key of format PKCS1 in JAVA
  10. Sign CSR using Bouncy Castle
  11. scp transfer via java
  12. How to include the Spongy Castle JAR in Android?
  13. Changing OpenSSL library in Android app for HttpClient
  14. How do I do TLS with BouncyCastle?
  15. Generating X509 Certificate using Bouncy Castle Java
  16. Get a PrivateKey from a RSA .pem file [duplicate]
  17. Self signed X509 Certificate with Bouncy Castle in Java
  18. Using Java to decrypt openssl aes-256-cbc using provided key and iv
  19. Decrypting an OpenSSL PEM Encoded RSA private key with Java?
  20. Wrong version of keystore on android call
  21. iText/BouncyCastle ClassNotFound org.bouncycastle.asn1.DEREncodable and org.bouncycastle.tsp.TimeStampTokenInfo
  22. Generate certificates, public and private keys with Java [closed]
  23. Java openssl encryption / decryption key generation [duplicate]
  24. How can I get a PublicKey object from EC public key bytes?
  25. Java equivalent of C++ encryption [duplicate]
  26. How to use .key and .crt file in java that generated by openssl?
  27. Getting GPG Decryption To Work In Java (Bouncy Castle)
  28. Creating .p12 truststore with openssl
  29. TLS 1.2 + Java 1.6 + BouncyCastle
  30. Java AES 128 encrypting differently to openssl

Leave a Comment