Package net.i2p.crypto.eddsa
Class EdDSAPublicKey
- java.lang.Object
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- net.i2p.crypto.eddsa.EdDSAPublicKey
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- All Implemented Interfaces:
Serializable
,Key
,PublicKey
,EdDSAKey
public class EdDSAPublicKey extends Object implements EdDSAKey, PublicKey
An EdDSA public key.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
- Author:
- str4d
- See Also:
- Serialized Form
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Field Summary
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Fields inherited from interface net.i2p.crypto.eddsa.EdDSAKey
KEY_ALGORITHM
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Constructor Summary
Constructors Constructor Description EdDSAPublicKey(X509EncodedKeySpec spec)
EdDSAPublicKey(EdDSAPublicKeySpec spec)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(Object o)
GroupElement
getA()
byte[]
getAbyte()
String
getAlgorithm()
byte[]
getEncoded()
Returns the public key in its canonical encoding.String
getFormat()
GroupElement
getNegativeA()
EdDSAParameterSpec
getParams()
int
hashCode()
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Constructor Detail
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EdDSAPublicKey
public EdDSAPublicKey(EdDSAPublicKeySpec spec)
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EdDSAPublicKey
public EdDSAPublicKey(X509EncodedKeySpec spec) throws InvalidKeySpecException
- Throws:
InvalidKeySpecException
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Method Detail
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getAlgorithm
public String getAlgorithm()
- Specified by:
getAlgorithm
in interfaceKey
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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
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getParams
public EdDSAParameterSpec getParams()
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getA
public GroupElement getA()
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getNegativeA
public GroupElement getNegativeA()
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getAbyte
public byte[] getAbyte()
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