Class EdDSAPublicKey
- All Implemented Interfaces:
Serializable
,Key
,PublicKey
,EdDSAKey
Warning: Public key encoding is is based on the current curdle WG draft, and is subject to change. See getEncoded().
For compatibility with older releases, decoding supports both the old and new draft specifications. See decode().
Ref: https://tools.ietf.org/html/draft-ietf-curdle-pkix-04
Old Ref: https://tools.ietf.org/html/draft-josefsson-pkix-eddsa-04
- See Also:
-
Field Summary
FieldsModifier and TypeFieldDescriptionprivate final GroupElement
private final byte[]
private GroupElement
private final EdDSAParameterSpec
private static final int
private static final int
private static final int
private static final int
private static final long
Fields inherited from interface net.i2p.crypto.eddsa.EdDSAKey
KEY_ALGORITHM
-
Constructor Summary
ConstructorsConstructorDescription -
Method Summary
-
Field Details
-
serialVersionUID
private static final long serialVersionUID- See Also:
-
A
-
Aneg
-
Abyte
private final byte[] Abyte -
edDsaSpec
-
OID_OLD
private static final int OID_OLD- See Also:
-
OID_ED25519
private static final int OID_ED25519- See Also:
-
OID_BYTE
private static final int OID_BYTE- See Also:
-
IDLEN_BYTE
private static final int IDLEN_BYTE- See Also:
-
-
Constructor Details
-
EdDSAPublicKey
-
EdDSAPublicKey
- Throws:
InvalidKeySpecException
-
-
Method Details
-
getAlgorithm
- Specified by:
getAlgorithm
in interfaceKey
-
getFormat
-
getEncoded
public byte[] getEncoded()Returns the public key in its canonical encoding.This implements the following specs:
- General encoding: https://tools.ietf.org/html/draft-ietf-curdle-pkix-04
- Key encoding: https://tools.ietf.org/html/rfc8032
For keys in older formats, decoding and then re-encoding is sufficient to migrate them to the canonical encoding.
Relevant spec quotes:In the X.509 certificate, the subjectPublicKeyInfo field has the SubjectPublicKeyInfo type, which has the following ASN.1 syntax: SubjectPublicKeyInfo ::= SEQUENCE { algorithm AlgorithmIdentifier, subjectPublicKey BIT STRING }
AlgorithmIdentifier ::= SEQUENCE { algorithm OBJECT IDENTIFIER, parameters ANY DEFINED BY algorithm OPTIONAL } For all of the OIDs, the parameters MUST be absent.
id-Ed25519 OBJECT IDENTIFIER ::= { 1 3 101 112 }
- Specified by:
getEncoded
in interfaceKey
- Returns:
- 44 bytes for Ed25519, null for other curves
-
decode
Extracts the public key bytes from the provided encoding.This will decode data conforming to the current spec at https://tools.ietf.org/html/draft-ietf-curdle-pkix-04 or the old spec at https://tools.ietf.org/html/draft-josefsson-pkix-eddsa-04.
Contrary to draft-ietf-curdle-pkix-04, it WILL accept a parameter value of NULL, as it is required for interoperability with the default Java keystore. Other implementations MUST NOT copy this behaviour from here unless they also need to read keys from the default Java keystore.
This is really dumb for now. It does not use a general-purpose ASN.1 decoder. See also getEncoded().
- Returns:
- 32 bytes for Ed25519, throws for other curves
- Throws:
InvalidKeySpecException
-
getParams
-
getA
-
getNegativeA
-
getAbyte
public byte[] getAbyte() -
hashCode
public int hashCode() -
equals
-