diff options
Diffstat (limited to 'lib/crypto/doc/src/crypto.xml')
| -rw-r--r-- | lib/crypto/doc/src/crypto.xml | 94 |
1 files changed, 72 insertions, 22 deletions
diff --git a/lib/crypto/doc/src/crypto.xml b/lib/crypto/doc/src/crypto.xml index 98384978a5..291a5145e4 100644 --- a/lib/crypto/doc/src/crypto.xml +++ b/lib/crypto/doc/src/crypto.xml @@ -8,16 +8,17 @@ <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> - The contents of this file are subject to the Erlang Public License, - Version 1.1, (the "License"); you may not use this file except in - compliance with the License. You should have received a copy of the - Erlang Public License along with this software. If not, it can be - retrieved online at http://www.erlang.org/. - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - the License for the specific language governing rights and limitations - under the License. + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. </legalnotice> @@ -41,7 +42,7 @@ </item> <item> <p>Block ciphers - <url href="http://csrc.nist.gov/groups/ST/toolkit/block_ciphers.html"> </url> DES and AES in - Block Cipher Modes - <url href="http://csrc.nist.gov/groups/ST/toolkit/BCM/index.html"> ECB, CBC, CFB, OFB and CTR </url></p> + Block Cipher Modes - <url href="http://csrc.nist.gov/groups/ST/toolkit/BCM/index.html"> ECB, CBC, CFB, OFB, CTR and GCM </url></p> </item> <item> <p><url href="http://www.ietf.org/rfc/rfc1321.txt"> RSA encryption RFC 1321 </url> </p> @@ -53,6 +54,12 @@ <item> <p><url href="http://www.ietf.org/rfc/rfc2945.txt"> Secure Remote Password Protocol (SRP - RFC 2945) </url></p> </item> + <item> + <p>gcm: Dworkin, M., "Recommendation for Block Cipher Modes of + Operation: Galois/Counter Mode (GCM) and GMAC", + National Institute of Standards and Technology SP 800- + 38D, November 2007.</p> + </item> </list> </description> @@ -132,6 +139,8 @@ blowfish_cfb64 | des_cbc | des_cfb | des3_cbc | des3_cbf | des_ede3 | rc2_cbc </code></p> + <p><code>aead_cipher() = aes_gcm | chacha20_poly1305 </code></p> + <p><code>stream_key() = aes_key() | rc4_key() </code></p> <p><code>block_key() = aes_key() | blowfish_key() | des_key()| des3_key() </code></p> @@ -152,7 +161,7 @@ Note that both md4 and md5 are recommended only for compatibility with existing applications. </p> <p><code> cipher_algorithms() = des_cbc | des_cfb | des3_cbc | des3_cbf | des_ede3 | - blowfish_cbc | blowfish_cfb64 | aes_cbc128 | aes_cfb8 | aes_cfb128| aes_cbc256 | aes_ige256 | rc2_cbc | aes_ctr| rc4 </code> </p> + blowfish_cbc | blowfish_cfb64 | aes_cbc128 | aes_cfb8 | aes_cfb128| aes_cbc256 | aes_ige256 | aes_gcm | chacha20_poly1305 | rc2_cbc | aes_ctr| rc4 </code> </p> <p><code> public_key_algorithms() = rsa |dss | ecdsa | dh | ecdh | ec_gf2m</code> Note that ec_gf2m is not strictly a public key algorithm, but a restriction on what curves are supported with ecdsa and ecdh. @@ -161,18 +170,53 @@ </section> <funcs> - <func> + <func> + <name>block_encrypt(Type, Key, PlainText) -> CipherText</name> + <fsummary>Encrypt <c>PlainText</c> according to <c>Type</c> block cipher</fsummary> + <type> + <v>Type = des_ecb | blowfish_ecb | aes_ecb </v> + <v>Key = block_key() </v> + <v>PlainText = iodata() </v> + </type> + <desc> + <p>Encrypt <c>PlainText</c> according to <c>Type</c> block cipher.</p> + <p>May throw exception <c>notsup</c> in case the chosen <c>Type</c> + is not supported by the underlying OpenSSL implementation.</p> + </desc> + </func> + + <func> + <name>block_decrypt(Type, Key, CipherText) -> PlainText</name> + <fsummary>Decrypt <c>CipherText</c> according to <c>Type</c> block cipher</fsummary> + <type> + <v>Type = des_ecb | blowfish_ecb | aes_ecb </v> + <v>Key = block_key() </v> + <v>PlainText = iodata() </v> + </type> + <desc> + <p>Decrypt <c>CipherText</c> according to <c>Type</c> block cipher.</p> + <p>May throw exception <c>notsup</c> in case the chosen <c>Type</c> + is not supported by the underlying OpenSSL implementation.</p> + </desc> + </func> + + <func> <name>block_encrypt(Type, Key, Ivec, PlainText) -> CipherText</name> - <fsummary>Encrypt <c>PlainText</c>according to <c>Type</c> block cipher</fsummary> + <name>block_encrypt(AeadType, Key, Ivec, {AAD, PlainText}) -> {CipherText, CipherTag}</name> + <fsummary>Encrypt <c>PlainText</c> according to <c>Type</c> block cipher</fsummary> <type> <v>Type = block_cipher() </v> + <v>AeadType = aead_cipher() </v> <v>Key = block_key() </v> <v>PlainText = iodata() </v> - <v>IVec = CipherText = binary()</v> + <v>AAD = IVec = CipherText = CipherTag = binary()</v> </type> <desc> - <p>Encrypt <c>PlainText</c>according to <c>Type</c> block cipher. + <p>Encrypt <c>PlainText</c> according to <c>Type</c> block cipher. <c>IVec</c> is an arbitrary initializing vector.</p> + <p>In AEAD (Authenticated Encryption with Associated Data) mode, encrypt + <c>PlainText</c>according to <c>Type</c> block cipher and calculate + <c>CipherTag</c> that also authenticates the <c>AAD</c> (Associated Authenticated Data).</p> <p>May throw exception <c>notsup</c> in case the chosen <c>Type</c> is not supported by the underlying OpenSSL implementation.</p> </desc> @@ -180,16 +224,22 @@ <func> <name>block_decrypt(Type, Key, Ivec, CipherText) -> PlainText</name> - <fsummary>Decrypt <c>CipherText</c>according to <c>Type</c> block cipher</fsummary> + <name>block_decrypt(AeadType, Key, Ivec, {AAD, CipherText, CipherTag}) -> PlainText | error</name> + <fsummary>Decrypt <c>CipherText</c> according to <c>Type</c> block cipher</fsummary> <type> <v>Type = block_cipher() </v> + <v>AeadType = aead_cipher() </v> <v>Key = block_key() </v> <v>PlainText = iodata() </v> - <v>IVec = CipherText = binary()</v> + <v>AAD = IVec = CipherText = CipherTag = binary()</v> </type> <desc> - <p>Decrypt <c>CipherText</c>according to <c>Type</c> block cipher. + <p>Decrypt <c>CipherText</c> according to <c>Type</c> block cipher. <c>IVec</c> is an arbitrary initializing vector.</p> + <p>In AEAD (Authenticated Encryption with Associated Data) mode, decrypt + <c>CipherText</c>according to <c>Type</c> block cipher and check the authenticity + the <c>PlainText</c> and <c>AAD</c> (Associated Authenticated Data) using the + <c>CipherTag</c>. May return <c>error</c> if the decryption or validation fail's</p> <p>May throw exception <c>notsup</c> in case the chosen <c>Type</c> is not supported by the underlying OpenSSL implementation.</p> </desc> @@ -250,7 +300,7 @@ <v>SrpUserParams = {user, [Generator::binary(), Prime::binary(), Version::atom()]}</v> <v>SrpHostParams = {host, [Verifier::binary(), Generator::binary(), Prime::binary(), Version::atom()]}</v> <v>PublicKey = dh_public() | ecdh_public() | srp_public() </v> - <v>PrivKeyIn = undefined | dh_private() | srp_private() </v> + <v>PrivKeyIn = undefined | dh_private() | ecdh_private() | srp_private() </v> <v>PrivKeyOut = dh_private() | ecdh_private() | srp_private() </v> </type> <desc> @@ -567,7 +617,7 @@ RAND_seed function from openssl. Only use this if the system you are running on does not have enough "randomness" built in. Normally this is when <seealso marker="#strong_rand_bytes/1"> - stong_rand_bytes/1</seealso> returns <c>low_entropy</c></p> + strong_rand_bytes/1</seealso> returns <c>low_entropy</c></p> </desc> </func> @@ -660,7 +710,7 @@ </type> <desc> <p>Initializes the state for use in streaming AES encryption using Counter mode (CTR). - <c>Key</c> is the AES key and must be either 128, 192, or 256 bts long. <c>IVec</c> is + <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). This state is for use with <seealso marker="#stream_encrypt-2">stream_encrypt</seealso> and <seealso marker="#stream_decrypt-2">stream_decrypt</seealso>.</p> |