[openssl] master update

[Matt Caswell]

The branch master has been updated
       via  a595b10d343845eca32cffb35f1d0a2f15ce40a9 (commit)
       via  6f3aae256d62cfcc48c07cc0ead5080b070f371b (commit)
      from  6caf7f3aec5484ee65067e9671299d3411565dc1 (commit)


- Log -----------------------------------------------------------------
commit a595b10d343845eca32cffb35f1d0a2f15ce40a9
Author: Matt Caswell <matt at openssl.org>
Date:   Thu Apr 18 10:55:11 2019 +0100

    Add some more test vectors for ChaCha20
    
    Reviewed-by: Tim Hudson <tjh at openssl.org>
    (Merged from https://github.com/openssl/openssl/pull/8780)

commit 6f3aae256d62cfcc48c07cc0ead5080b070f371b
Author: Matt Caswell <matt at openssl.org>
Date:   Thu Apr 18 10:54:58 2019 +0100

    Clarify the documentation on the use of ChaCha20
    
    Reviewed-by: Tim Hudson <tjh at openssl.org>
    (Merged from https://github.com/openssl/openssl/pull/8780)

-----------------------------------------------------------------------

Summary of changes:
 doc/man3/EVP_chacha20.pod                 | 10 +++++++++-
 test/recipes/30-test_evp_data/evpciph.txt | 29 ++++++++++++++++++++++++++++-
 2 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/doc/man3/EVP_chacha20.pod b/doc/man3/EVP_chacha20.pod
index 7b014c2..5218ee2 100644
--- a/doc/man3/EVP_chacha20.pod
+++ b/doc/man3/EVP_chacha20.pod
@@ -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()
 
diff --git a/test/recipes/30-test_evp_data/evpciph.txt b/test/recipes/30-test_evp_data/evpciph.txt
index 7c87a6f..553bee5 100644
--- a/test/recipes/30-test_evp_data/evpciph.txt
+++ b/test/recipes/30-test_evp_data/evpciph.txt
@@ -2388,14 +2388,41 @@ Operation = ENCRYPT
 Plaintext = B41E6BE2EBA84A148E2EED84593C5EC7
 Ciphertext = 9B9B7BFCD1813CB95D0B3618F40F5122
 
-Title = Chacha20
+Title = Chacha20 test vectors from RFC7539
 
+# A.1 Test Vector 1
 Cipher = chacha20
 Key = 0000000000000000000000000000000000000000000000000000000000000000
 IV = 00000000000000000000000000000000
 Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 76b8e0ada0f13d90405d6ae55386bd28bdd219b8a08ded1aa836efcc8b770dc7da41597c5157488d7724e03fb8d84a376a43b8f41518a11cc387b669b2ee6586
 
+# A.1 Test Vector 2
+Cipher = chacha20
+Key = 0000000000000000000000000000000000000000000000000000000000000000
+IV = 01000000000000000000000000000000
+Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+Ciphertext = 9f07e7be5551387a98ba977c732d080dcb0f29a048e3656912c6533e32ee7aed29b721769ce64e43d57133b074d839d531ed1f28510afb45ace10a1f4b794d6f
+
+# A.2 Test Vector 1 is the same as A.1 Test Vector 1
+# A.2 Test Vector 2
+Cipher = chacha20
+Key = 0000000000000000000000000000000000000000000000000000000000000001
+#Counter (first 4 bytes) expressed in little-endian order
+IV = 01000000000000000000000000000002
+Plaintext = 416e79207375626d697373696f6e20746f20746865204945544620696e74656e6465642062792074686520436f6e7472696275746f7220666f72207075626c69636174696f6e20617320616c6c206f722070617274206f6620616e204945544620496e7465726e65742d4472616674206f722052464320616e6420616e792073746174656d656e74206d6164652077697468696e2074686520636f6e74657874206f6620616e204945544620616374697669747920697320636f6e7369646572656420616e20224945544620436f6e747269627574696f6e222e20537563682073746174656d656e747320696e636c756465206f72616c2073746174656d656e747320696e20494554462073657373696f6e732c2061732077656c6c206173207772697474656e20616e6420656c656374726f6e696320636f6d6d756e69636174696f6e73206d61646520617420616e792074696d65206f7220706c6163652c207768696368206172652061646472657373656420746f
+Ciphertext = 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
+
+# A.2 Test Vector 3
+Cipher = chacha20
+Key = 1c9240a5eb55d38af333888604f6b5f0473917c1402b80099dca5cbc207075c0
+#Counter (first 4 bytes) expressed in little-endian order
+IV = 2a000000000000000000000000000002
+Plaintext = 2754776173206272696c6c69672c20616e642074686520736c6974687920746f7665730a446964206779726520616e642067696d626c6520696e2074686520776162653a0a416c6c206d696d737920776572652074686520626f726f676f7665732c0a416e6420746865206d6f6d65207261746873206f757467726162652e
+Ciphertext = 62e6347f95ed87a45ffae7426f27a1df5fb69110044c0d73118effa95b01e5cf166d3df2d721caf9b21e5fb14c616871fd84c54f9d65b283196c7fe4f60553ebf39c6402c42234e32a356b3e764312a61a5532055716ead6962568f87d3f3f7704c6a8d1bcd1bf4d50d6154b6da731b187b58dfd728afa36757a797ac188d1
+
+Title = Chacha20
+
 Cipher = chacha20
 Key = 0000000000000000000000000000000000000000000000000000000000000001
 IV = 00000000000000000000000000000000