diff options
Diffstat (limited to 'lib/crypto/doc/src/crypto.xml')
| -rw-r--r-- | lib/crypto/doc/src/crypto.xml | 119 |
1 files changed, 91 insertions, 28 deletions
diff --git a/lib/crypto/doc/src/crypto.xml b/lib/crypto/doc/src/crypto.xml index 2868fe05f0..045ad4c050 100644 --- a/lib/crypto/doc/src/crypto.xml +++ b/lib/crypto/doc/src/crypto.xml @@ -256,6 +256,57 @@ Mpint() = <![CDATA[<<ByteLen:32/integer-big, Bytes:ByteLen/binary>>]]> </desc> </func> <func> + <name>hash(Type, Data) -> Digest</name> + <fsummary></fsummary> + <type> + <v>Type = md4 | md5 | sha | sha224 | sha256 | sha384 | sha512</v> + <v>Data = iodata()</v> + <v>Digest = binary()</v> + </type> + <desc> + <p>Computes a message digest of type <c>Type</c> from <c>Data</c>.</p> + </desc> + </func> + <func> + <name>hash_init(Type) -> Context</name> + <fsummary></fsummary> + <type> + <v>Type = md4 | md5 | sha | sha224 | sha256 | sha384 | sha512</v> + </type> + <desc> + <p>Initializes the context for streaming hash operations. <c>Type</c> determines + which digest to use. The returned context should be used as argument + to <seealso marker="#hash_update/2">hash_update</seealso>.</p> + </desc> + </func> + <func> + <name>hash_update(Context, Data) -> NewContext</name> + <fsummary></fsummary> + <type> + <v>Data = iodata()</v> + </type> + <desc> + <p>Updates the digest represented by <c>Context</c> using the given <c>Data</c>. <c>Context</c> + must have been generated using <seealso marker="#hash_init/1">hash_init</seealso> + or a previous call to this function. <c>Data</c> can be any length. <c>NewContext</c> + must be passed into the next call to <c>hash_update</c> + or <seealso marker="#hash_final/1">hash_final</seealso>.</p> + </desc> + </func> + <func> + <name>hash_final(Context) -> Digest</name> + <fsummary></fsummary> + <type> + <v>Digest = binary()</v> + </type> + <desc> + <p>Finalizes the hash operation referenced by <c>Context</c> returned + from a previous call to <seealso marker="#hash_update/2">hash_update</seealso>. + The size of <c>Digest</c> is determined by the type of hash + function used to generate it.</p> + </desc> + </func> + <func> <name>md5_mac(Key, Data) -> Mac</name> <fsummary>Compute an <c>MD5 MAC</c>message authentification code</fsummary> <type> @@ -893,11 +944,13 @@ Mpint() = <![CDATA[<<ByteLen:32/integer-big, Bytes:ByteLen/binary>>]]> </func> <func> - <name>rsa_sign(Data, Key) -> Signature</name> - <name>rsa_sign(DigestType, Data, Key) -> Signature</name> + <name>rsa_sign(DataOrDigest, Key) -> Signature</name> + <name>rsa_sign(DigestType, DataOrDigest, Key) -> Signature</name> <fsummary>Sign the data using rsa with the given key.</fsummary> <type> + <v>DataOrDigest = Data | {digest,Digest}</v> <v>Data = Mpint</v> + <v>Digest = binary()</v> <v>Key = [E, N, D] | [E, N, D, P1, P2, E1, E2, C]</v> <v>E, N, D = Mpint</v> <d>Where <c>E</c> is the public exponent, <c>N</c> is public modulus and @@ -907,37 +960,40 @@ Mpint() = <![CDATA[<<ByteLen:32/integer-big, Bytes:ByteLen/binary>>]]> the calculation faster. <c>P1,P2</c> are first and second prime factors. <c>E1,E2</c> are first and second exponents. <c>C</c> is the CRT coefficient. Terminology is taken from RFC 3447.</d> - <v>DigestType = md5 | sha</v> + <v>DigestType = md5 | sha | sha224 | sha256 | sha384 | sha512</v> <d>The default <c>DigestType</c> is sha.</d> <v>Mpint = binary()</v> <v>Signature = binary()</v> </type> <desc> - <p>Calculates a <c>DigestType</c> digest of the <c>Data</c> - and creates a RSA signature with the private key <c>Key</c> - of the digest.</p> + <p>Creates a RSA signature with the private key <c>Key</c> + of a digest. The digest is either calculated as a + <c>DigestType</c> digest of <c>Data</c> or a precalculated + binary <c>Digest</c>.</p> </desc> </func> <func> - <name>rsa_verify(Data, Signature, Key) -> Verified</name> - <name>rsa_verify(DigestType, Data, Signature, Key) -> Verified </name> + <name>rsa_verify(DataOrDigest, Signature, Key) -> Verified</name> + <name>rsa_verify(DigestType, DataOrDigest, Signature, Key) -> Verified </name> <fsummary>Verify the digest and signature using rsa with given public key.</fsummary> <type> <v>Verified = boolean()</v> + <v>DataOrDigest = Data | {digest|Digest}</v> <v>Data, Signature = Mpint</v> + <v>Digest = binary()</v> <v>Key = [E, N]</v> <v>E, N = Mpint</v> <d>Where <c>E</c> is the public exponent and <c>N</c> is public modulus.</d> - <v>DigestType = md5 | sha | sha256 | sha384 | sha512</v> - <d> The default <c>DigestType</c> is sha.</d> + <v>DigestType = md5 | sha | sha224 | sha256 | sha384 | sha512</v> + <d>The default <c>DigestType</c> is sha.</d> <v>Mpint = binary()</v> </type> <desc> - <p>Calculates a <c>DigestType</c> digest of the <c>Data</c> - and verifies that the digest matches the RSA signature using the + <p>Verifies that a digest matches the RSA signature using the signer's public key <c>Key</c>. - </p> + The digest is either calculated as a <c>DigestType</c> + digest of <c>Data</c> or a precalculated binary <c>Digest</c>.</p> <p>May throw exception <c>notsup</c> in case the chosen <c>DigestType</c> is not supported by the underlying OpenSSL implementation.</p> </desc> @@ -1050,45 +1106,52 @@ Mpint() = <![CDATA[<<ByteLen:32/integer-big, Bytes:ByteLen/binary>>]]> </func> <func> - <name>dss_sign(Data, Key) -> Signature</name> - <name>dss_sign(DigestType, Data, Key) -> Signature</name> + <name>dss_sign(DataOrDigest, Key) -> Signature</name> + <name>dss_sign(DigestType, DataOrDigest, Key) -> Signature</name> <fsummary>Sign the data using dsa with given private key.</fsummary> <type> - <v>DigestType = sha | none (default is sha)</v> - <v>Data = Mpint | ShaDigest</v> + <v>DigestType = sha</v> + <v>DataOrDigest = Mpint | {digest,Digest}</v> <v>Key = [P, Q, G, X]</v> <v>P, Q, G, X = Mpint</v> <d> Where <c>P</c>, <c>Q</c> and <c>G</c> are the dss parameters and <c>X</c> is the private key.</d> - <v>ShaDigest = binary() with length 20 bytes</v> + <v>Digest = binary() with length 20 bytes</v> <v>Signature = binary()</v> </type> <desc> - <p>Creates a DSS signature with the private key <c>Key</c> of a digest. - If <c>DigestType</c> is 'sha', the digest is calculated as SHA1 of <c>Data</c>. - If <c>DigestType</c> is 'none', <c>Data</c> is the precalculated SHA1 digest.</p> + <p>Creates a DSS signature with the private key <c>Key</c> of + a digest. The digest is either calculated as a SHA1 + digest of <c>Data</c> or a precalculated binary <c>Digest</c>.</p> + <p>A deprecated feature is having <c>DigestType = 'none'</c> + in which case <c>DataOrDigest</c> is a precalculated SHA1 + digest.</p> </desc> </func> <func> - <name>dss_verify(Data, Signature, Key) -> Verified</name> - <name>dss_verify(DigestType, Data, Signature, Key) -> Verified</name> + <name>dss_verify(DataOrDigest, Signature, Key) -> Verified</name> + <name>dss_verify(DigestType, DataOrDigest, Signature, Key) -> Verified</name> <fsummary>Verify the data and signature using dsa with given public key.</fsummary> <type> <v>Verified = boolean()</v> - <v>DigestType = sha | none</v> + <v>DigestType = sha</v> + <v>DataOrDigest = Mpint | {digest,Digest}</v> <v>Data = Mpint | ShaDigest</v> <v>Signature = Mpint</v> <v>Key = [P, Q, G, Y]</v> <v>P, Q, G, Y = Mpint</v> <d> Where <c>P</c>, <c>Q</c> and <c>G</c> are the dss parameters and <c>Y</c> is the public key.</d> - <v>ShaDigest = binary() with length 20 bytes</v> + <v>Digest = binary() with length 20 bytes</v> </type> <desc> - <p>Verifies that a digest matches the DSS signature using the public key <c>Key</c>. - If <c>DigestType</c> is 'sha', the digest is calculated as SHA1 of <c>Data</c>. - If <c>DigestType</c> is 'none', <c>Data</c> is the precalculated SHA1 digest.</p> + <p>Verifies that a digest matches the DSS signature using the + public key <c>Key</c>. The digest is either calculated as a SHA1 + digest of <c>Data</c> or is a precalculated binary <c>Digest</c>.</p> + <p>A deprecated feature is having <c>DigestType = 'none'</c> + in which case <c>DataOrDigest</c> is a precalculated SHA1 + digest binary.</p> </desc> </func> |