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8153029: ChaCha20 Cipher Implementation

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Add the ChaCha20 and ChaCha20-Poly1305 Cipher implementations

Reviewed-by: mullan
This commit is contained in:
Jamil Nimeh 2018-05-31 07:05:10 -07:00
parent 89251ae9a3
commit fcb805f9a6
10 changed files with 3556 additions and 3 deletions
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9
src/java.base/share/classes/javax/crypto/Cipher.java
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@ -111,7 +111,7 @@ import sun.security.jca.*;
* encryption with a given key. When IVs are repeated for GCM
* encryption, such usages are subject to forgery attacks. Thus, after
* each encryption operation using GCM mode, callers should re-initialize
* the cipher objects with GCM parameters which has a different IV value.
* the cipher objects with GCM parameters which have a different IV value.
* <pre>
* GCMParameterSpec s = ...;
* cipher.init(..., s);
@ -131,6 +131,13 @@ import sun.security.jca.*;
* ...
*
* </pre>
* The ChaCha20 and ChaCha20-Poly1305 algorithms have a similar requirement
* for unique nonces with a given key. After each encryption or decryption
* operation, callers should re-initialize their ChaCha20 or ChaCha20-Poly1305
* ciphers with parameters that specify a different nonce value. Please
* see <a href="https://tools.ietf.org/html/rfc7539">RFC 7539</a> for more
* information on the ChaCha20 and ChaCha20-Poly1305 algorithms.
* <p>
* Every implementation of the Java platform is required to support
* the following standard {@code Cipher} transformations with the keysizes
* in parentheses: