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-rw-r--r--lib/crypto/doc/src/crypto.xml30
1 files changed, 29 insertions, 1 deletions
diff --git a/lib/crypto/doc/src/crypto.xml b/lib/crypto/doc/src/crypto.xml
index e1431cfd81..c407350c47 100644
--- a/lib/crypto/doc/src/crypto.xml
+++ b/lib/crypto/doc/src/crypto.xml
@@ -53,7 +53,7 @@
<p>aes: Advanced Encryption Standard (AES) (FIPS 197) </p>
</item>
<item>
- <p>ecb, cbc, cfb, ofb: Recommendation for Block Cipher Modes
+ <p>ecb, cbc, cfb, ofb, ctr: Recommendation for Block Cipher Modes
of Operation (NIST SP 800-38A).</p>
</item>
<item>
@@ -557,6 +557,34 @@ Mpint() = <![CDATA[<<ByteLen:32/integer-big, Bytes:ByteLen/binary>>]]>
</desc>
</func>
<func>
+ <name>aes_ctr_encrypt(Key, IVec, Text) -> Cipher</name>
+ <fsummary>Encrypt <c>Text</c>according to AES in Counter mode</fsummary>
+ <type>
+ <v>Key = Text = iolist() | binary()</v>
+ <v>IVec = Cipher = binary()</v>
+ </type>
+ <desc>
+ <p>Encrypts <c>Text</c> according to AES in Counter mode (CTR). <c>Text</c>
+ can be any number of bytes. <c>Key</c> is the AES key and must be either
+ 128, 192 or 256 bits long. <c>IVec</c> is an arbitrary initializing vector of 128 bits
+ (16 bytes).</p>
+ </desc>
+ </func>
+ <func>
+ <name>aes_ctr_decrypt(Key, IVec, Cipher) -> Text</name>
+ <fsummary>Decrypt <c>Cipher</c>according to AES in Counter mode</fsummary>
+ <type>
+ <v>Key = Cipher = iolist() | binary()</v>
+ <v>IVec = Text = binary()</v>
+ </type>
+ <desc>
+ <p>Decrypts <c>Cipher</c> according to AES in Counter mode (CTR). <c>Cipher</c>
+ can be any number of bytes. <c>Key</c> is the AES key and must be either
+ 128, 192 or 256 bits long. <c>IVec</c> is an arbitrary initializing vector of 128 bits
+ (16 bytes).</p>
+ </desc>
+ </func>
+ <func>
<name>erlint(Mpint) -> N</name>
<name>mpint(N) -> Mpint</name>
<fsummary>Convert between binary multi-precision integer and erlang big integer</fsummary>