Package org.snmp4j.security

Class AuthSHA2

java.lang.Object

org.snmp4j.security.AuthGeneric

org.snmp4j.security.AuthSHA2

All Implemented Interfaces:

Serializable, AuthenticationProtocol, SecurityProtocol

Direct Known Subclasses:

AuthHMAC128SHA224, AuthHMAC192SHA256, AuthHMAC256SHA384, AuthHMAC384SHA512

public class AuthSHA2
extends AuthGeneric

The SHA-2 class implements the Secure Hash Authentication 2.

Version:

2.4.0

Author:

Frank Fock

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.snmp4j.security.AuthGeneric

HMAC_BLOCK_SIZE, hmacBlockSize

Constructor Summary

Constructors

Constructor	Description
AuthSHA2(String protocolName, OID protocolOID, int digestLength, int authenticationCodeLength)	Deprecated. Use AuthSHA2(String, OID, int, int, int) instead to specify the correct HMAC block size
AuthSHA2(String protocolName, OID protocolOID, int digestLength, int authenticationCodeLength, int hmacBlockSize)	Creates a SHA authentication protocol with the specified digest length.

Method Summary

Modifier and Type	Method	Description
OID	getID()	Gets the OID uniquely identifying the authentication protocol.

Methods inherited from class org.snmp4j.security.AuthGeneric

authenticate, changeDelta, getAuthenticationCodeLength, getDigestLength, getDigestObject, getMaxKeyLength, hash, hash, isAuthentic, isSupported, passwordToKey

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AuthSHA2

public AuthSHA2(String protocolName,
 OID protocolOID,
 int digestLength,
 int authenticationCodeLength)

Deprecated.

Use AuthSHA2(String, OID, int, int, int) instead to specify the correct HMAC block size

Creates a SHA authentication protocol with the specified digest length.

Parameters:

protocolName - the SHA protocol name (i.e., "SHA-256").

protocolOID - the OID of the protocol as defined in RFC 7630.

digestLength - the digest length.

authenticationCodeLength - the length of the authentication hash output in octets.

AuthSHA2

public AuthSHA2(String protocolName,
 OID protocolOID,
 int digestLength,
 int authenticationCodeLength,
 int hmacBlockSize)

Creates a SHA authentication protocol with the specified digest length.

Parameters:

protocolName - the SHA protocol name (i.e., "SHA-256").

protocolOID - the OID of the protocol as defined in RFC 7630.

digestLength - the digest length.

authenticationCodeLength - the length of the authentication hash output in octets.

hmacBlockSize - the HMAC block size of the authentication protocol.

Method Details

getID

public OID getID()

Description copied from interface: AuthenticationProtocol

Gets the OID uniquely identifying the authentication protocol.

Returns:

an OID instance.