Latest update

2019-04-26 08:41:22 +09:00
parent 704c3822e0
commit a7bf77581f
91 changed files with 4677 additions and 389 deletions
@@ -21,7 +21,15 @@ The ChaCha20 stream cipher for EVP.

 =item EVP_chacha20()

-The ChaCha20 stream cipher. The key length is 256 bits, the IV is 96 bits long.
+The ChaCha20 stream cipher. The key length is 256 bits, the IV is 128 bits long.
+The first 32 bits consists of a counter in little-endian order followed by a 96
+bit nonce. For example a nonce of:
+
+000000000000000000000002
+
+With an initial counter of 42 (2a in hex) would be expressed as:
+
+2a000000000000000000000000000002

 =item EVP_chacha20_poly1305()