diff options
Diffstat (limited to 'pki/base/util/src/netscape/security/provider/RSAPublicKey.java')
| -rw-r--r-- | pki/base/util/src/netscape/security/provider/RSAPublicKey.java | 178 |
1 files changed, 88 insertions, 90 deletions
diff --git a/pki/base/util/src/netscape/security/provider/RSAPublicKey.java b/pki/base/util/src/netscape/security/provider/RSAPublicKey.java index 4f5ec46b..adc0b6a4 100644 --- a/pki/base/util/src/netscape/security/provider/RSAPublicKey.java +++ b/pki/base/util/src/netscape/security/provider/RSAPublicKey.java @@ -31,122 +31,120 @@ import netscape.security.x509.X509Key; /** * An X.509 public key for the RSA Algorithm. - * + * * @author galperin - * + * * @version $Revision$, $Date$ - * + * */ public final class RSAPublicKey extends X509Key implements Serializable { - /* XXX This currently understands only PKCS#1 RSA Encryption OID - and parameter format - Later we may consider adding X509v3 OID for RSA keys. Besides - different OID it also has a parameter equal to modulus size - in bits (redundant!) - */ + /* + * XXX This currently understands only PKCS#1 RSA Encryption OID and + * parameter format Later we may consider adding X509v3 OID for RSA keys. + * Besides different OID it also has a parameter equal to modulus size in + * bits (redundant!) + */ - /** + /** * */ private static final long serialVersionUID = 7764823589128565374L; -private static final ObjectIdentifier ALGORITHM_OID = - AlgorithmId.RSAEncryption_oid; - - private BigInt modulus; - private BigInt publicExponent; - + private static final ObjectIdentifier ALGORITHM_OID = AlgorithmId.RSAEncryption_oid; + + private BigInt modulus; + private BigInt publicExponent; + /* - * Keep this constructor for backwards compatibility with JDK1.1. + * Keep this constructor for backwards compatibility with JDK1.1. */ - public RSAPublicKey() { - } + public RSAPublicKey() { + } /** * Make a RSA public key out of a public exponent and modulus */ - public RSAPublicKey(BigInt modulus, BigInt publicExponent) - throws InvalidKeyException { - this.modulus = modulus; - this.publicExponent = publicExponent; - this.algid = new AlgorithmId(ALGORITHM_OID); - - try { - DerOutputStream out = new DerOutputStream (); - - out.putInteger (modulus); - out.putInteger (publicExponent); - key = (new DerValue(DerValue.tag_Sequence, - out.toByteArray())).toByteArray(); - encode(); - } catch (IOException ex) { - throw new InvalidKeyException("could not DER encode : " + - ex.getMessage()); - } - } - + public RSAPublicKey(BigInt modulus, BigInt publicExponent) + throws InvalidKeyException { + this.modulus = modulus; + this.publicExponent = publicExponent; + this.algid = new AlgorithmId(ALGORITHM_OID); + + try { + DerOutputStream out = new DerOutputStream(); + + out.putInteger(modulus); + out.putInteger(publicExponent); + key = (new DerValue(DerValue.tag_Sequence, out.toByteArray())) + .toByteArray(); + encode(); + } catch (IOException ex) { + throw new InvalidKeyException("could not DER encode : " + + ex.getMessage()); + } + } + /** * Make a RSA public key from its DER encoding (X.509). */ - public RSAPublicKey(byte[] encoded) throws InvalidKeyException { - decode(encoded); - } - + public RSAPublicKey(byte[] encoded) throws InvalidKeyException { + decode(encoded); + } + /** - * Get key size as number of bits in modulus - * (Always rounded up to a multiple of 8) - * + * Get key size as number of bits in modulus (Always rounded up to a + * multiple of 8) + * */ - public int getKeySize() { - return this.modulus.byteLength() * 8; - } - + public int getKeySize() { + return this.modulus.byteLength() * 8; + } + /** * Get the raw public exponent - * + * */ - public BigInt getPublicExponent() { - return this.publicExponent; - } - + public BigInt getPublicExponent() { + return this.publicExponent; + } + /** * Get the raw modulus - * + * */ - public BigInt getModulus() { - return this.modulus; - } - - public String toString() { - return "RSA Public Key\n Algorithm: " + algid - + "\n modulus:\n" + this.modulus.toString() + "\n" - + "\n publicExponent:\n" + this.publicExponent.toString() - + "\n"; - } - - protected void parseKeyBits() throws InvalidKeyException { - if (!this.algid.getOID().equals(ALGORITHM_OID) && - !this.algid.getOID().equals(AlgorithmId.RSA_oid)) { - throw new InvalidKeyException("Key algorithm OID is not RSA"); - } - - try { - DerValue val = new DerValue (key); - if (val.tag != DerValue.tag_Sequence) { - throw new InvalidKeyException("Invalid RSA public key format:" + - " must be a SEQUENCE"); - } - - DerInputStream in = val.data; - - this.modulus = in.getInteger(); - this.publicExponent = in.getInteger(); - } catch (IOException e) { - throw new InvalidKeyException("Invalid RSA public key: " + - e.getMessage()); - } - } - + public BigInt getModulus() { + return this.modulus; + } + + public String toString() { + return "RSA Public Key\n Algorithm: " + algid + "\n modulus:\n" + + this.modulus.toString() + "\n" + "\n publicExponent:\n" + + this.publicExponent.toString() + "\n"; + } + + protected void parseKeyBits() throws InvalidKeyException { + if (!this.algid.getOID().equals(ALGORITHM_OID) + && !this.algid.getOID().equals(AlgorithmId.RSA_oid)) { + throw new InvalidKeyException("Key algorithm OID is not RSA"); + } + + try { + DerValue val = new DerValue(key); + if (val.tag != DerValue.tag_Sequence) { + throw new InvalidKeyException("Invalid RSA public key format:" + + " must be a SEQUENCE"); + } + + DerInputStream in = val.data; + + this.modulus = in.getInteger(); + this.publicExponent = in.getInteger(); + } catch (IOException e) { + throw new InvalidKeyException("Invalid RSA public key: " + + e.getMessage()); + } + } + } |