Bouncy Castle Cryptography Library 1.80 · org.bouncycastle.tls.crypto.TlsSecret

Method Summary

Modifier and Type	Method and Description
public byte[]	calculateHMAC(int the hash algorithm to instantiate HMAC with. See `CryptoHashAlgorithm` for values. cryptoHashAlgorithm, byte[] array containing the input data. buf, int offset into the input array the input starts at. off, int the length of the input data. len) Calculate an HMAC with this secret's data as the key.
public TlsSecret	Returns: the new secret. deriveUsingPRF(int PRF algorithm to use. prfAlgorithm, String the label details. label, byte[] the seed details. seed, int the size (in bytes) of the secret to generate. length) Return a new secret based on applying a PRF to this one.
public void	destroy() Destroy the internal state of the secret.
public byte[]	Returns: an encrypted copy of this secret's internal data. encrypt(TlsEncryptor the encryptor to use for protecting the internal data. encryptor) Return an encrypted copy of the data this secret is based on.
public byte[]	Returns: the secret's internal data. extract() Return the internal data from this secret.
public TlsSecret	Returns: output keying material (of 'length' octets). hkdfExpand(int the hash algorithm to instantiate HMAC with. See `CryptoHashAlgorithm` for values. cryptoHashAlgorithm, byte[] optional context and application specific information (can be zero-length). info, int length of output keying material in octets. length) RFC 5869 HKDF-Expand function, with this secret's data as the pseudo-random key ('prk').
public TlsSecret	Returns: a pseudo-random key (of HashLen octets). hkdfExtract(int the hash algorithm to instantiate HMAC with. See `CryptoHashAlgorithm` for values. cryptoHashAlgorithm, TlsSecret input keying material. ikm) RFC 5869 HKDF-Extract function, with this secret's data as the 'salt'.
public boolean	isAlive()

Method Detail

calculateHMAC back to summary

calculateHMAC	back to summary
public byte[] calculateHMAC(int cryptoHashAlgorithm, byte[] buf, int off, int len) Calculate an HMAC with this secret's data as the key. Parameters cryptoHashAlgorithm:int the hash algorithm to instantiate HMAC with. See `CryptoHashAlgorithm` for values. buf:byte[] array containing the input data. off:int offset into the input array the input starts at. len:int the length of the input data.

public byte[] calculateHMAC(int cryptoHashAlgorithm, byte[] buf, int off, int len)

Calculate an HMAC with this secret's data as the key.

Parameters

cryptoHashAlgorithm:int: the hash algorithm to instantiate HMAC with. See CryptoHashAlgorithm for values.
buf:byte[]: array containing the input data.
off:int: offset into the input array the input starts at.
len:int: the length of the input data.

deriveUsingPRF	back to summary
public TlsSecret deriveUsingPRF(int prfAlgorithm, String label, byte[] seed, int length) Return a new secret based on applying a PRF to this one. Parameters prfAlgorithm:int PRF algorithm to use. label:String the label details. seed:byte[] the seed details. length:int the size (in bytes) of the secret to generate. Returns:TlsSecret the new secret.

deriveUsingPRF

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public TlsSecret deriveUsingPRF(int prfAlgorithm, String label, byte[] seed, int length)

Return a new secret based on applying a PRF to this one.

Parameters

prfAlgorithm:int: PRF algorithm to use.
label:String: the label details.
seed:byte[]: the seed details.
length:int: the size (in bytes) of the secret to generate.

Returns:TlsSecret

the new secret.

destroy	back to summary
public void destroy() Destroy the internal state of the secret. After this call, any attempt to use the `TlsSecret` will result in an `IllegalStateException` being thrown.

encrypt	back to summary
public byte[] encrypt(TlsEncryptor encryptor) throws IOException Return an encrypted copy of the data this secret is based on. Parameters encryptor:TlsEncryptor the encryptor to use for protecting the internal data. Returns:byte[] an encrypted copy of this secret's internal data.

encrypt

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public byte[] encrypt(TlsEncryptor encryptor) throws IOException

Return an encrypted copy of the data this secret is based on.

Parameters

encryptor:TlsEncryptor: the encryptor to use for protecting the internal data.

Returns:byte[]

an encrypted copy of this secret's internal data.

extract back to summary

extract	back to summary
public byte[] extract() Return the internal data from this secret. The `TlsSecret` does not keep a copy of the data. After this call, any attempt to use the `TlsSecret` will result in an `IllegalStateException` being thrown. Returns:byte[] the secret's internal data.

public byte[] extract()

Return the internal data from this secret. The TlsSecret does not keep a copy of the data. After this call, any attempt to use the TlsSecret will result in an IllegalStateException being thrown.

Returns:byte[]: the secret's internal data.

hkdfExpand back to summary

hkdfExpand	back to summary
public TlsSecret hkdfExpand(int cryptoHashAlgorithm, byte[] info, int length) RFC 5869 HKDF-Expand function, with this secret's data as the pseudo-random key ('prk'). Parameters cryptoHashAlgorithm:int the hash algorithm to instantiate HMAC with. See `CryptoHashAlgorithm` for values. info:byte[] optional context and application specific information (can be zero-length). length:int length of output keying material in octets. Returns:TlsSecret output keying material (of 'length' octets).

public TlsSecret hkdfExpand(int cryptoHashAlgorithm, byte[] info, int length)

RFC 5869 HKDF-Expand function, with this secret's data as the pseudo-random key ('prk').

Parameters

cryptoHashAlgorithm:int: the hash algorithm to instantiate HMAC with. See CryptoHashAlgorithm for values.
info:byte[]: optional context and application specific information (can be zero-length).
length:int: length of output keying material in octets.

Returns:TlsSecret

output keying material (of 'length' octets).

hkdfExtract back to summary

hkdfExtract	back to summary
public TlsSecret hkdfExtract(int cryptoHashAlgorithm, TlsSecret ikm) RFC 5869 HKDF-Extract function, with this secret's data as the 'salt'. The `TlsSecret` does not keep a copy of the data. After this call, any attempt to use the `TlsSecret` will result in an `IllegalStateException` being thrown. Parameters cryptoHashAlgorithm:int the hash algorithm to instantiate HMAC with. See `CryptoHashAlgorithm` for values. ikm:TlsSecret input keying material. Returns:TlsSecret a pseudo-random key (of HashLen octets).

public TlsSecret hkdfExtract(int cryptoHashAlgorithm, TlsSecret ikm)

RFC 5869 HKDF-Extract function, with this secret's data as the 'salt'. The TlsSecret does not keep a copy of the data. After this call, any attempt to use the TlsSecret will result in an IllegalStateException being thrown.

Parameters

cryptoHashAlgorithm:int: the hash algorithm to instantiate HMAC with. See CryptoHashAlgorithm for values.
ikm:TlsSecret: input keying material.

Returns:TlsSecret

a pseudo-random key (of HashLen octets).

isAlive	back to summary
public boolean isAlive()

public Interface TlsSecret

Method Summary

Method Detail