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| author | Sverker Eriksson <[email protected]> | 2010-06-09 12:01:01 +0000 |
|---|---|---|
| committer | Erlang/OTP <[email protected]> | 2010-06-09 14:19:56 +0200 |
| commit | 8e7719b8a5ae1d9e2e464d6d1a7abe502e0f9cd3 (patch) | |
| tree | 800d8c61206b3cd585f78e3110dba994bcd33ccc /lib/crypto/doc | |
| parent | 5cec02b04436ac121d95cec59c98ced8deb477d8 (diff) | |
| download | otp-8e7719b8a5ae1d9e2e464d6d1a7abe502e0f9cd3.tar.gz otp-8e7719b8a5ae1d9e2e464d6d1a7abe502e0f9cd3.tar.bz2 otp-8e7719b8a5ae1d9e2e464d6d1a7abe502e0f9cd3.zip | |
OTP-8700 crypto:dss_sign and dss_verify with pre-hashed digest.
New variants of crypto:dss_sign and crypto:dss_verify with an extra
argument to control how the digest is calculated.
Diffstat (limited to 'lib/crypto/doc')
| -rw-r--r-- | lib/crypto/doc/src/crypto.xml | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/lib/crypto/doc/src/crypto.xml b/lib/crypto/doc/src/crypto.xml index 256eab3e3c..e1431cfd81 100644 --- a/lib/crypto/doc/src/crypto.xml +++ b/lib/crypto/doc/src/crypto.xml @@ -755,39 +755,44 @@ Mpint() = <![CDATA[<<ByteLen:32/integer-big, Bytes:ByteLen/binary>>]]> <func> <name>dss_sign(Data, Key) -> Signature</name> + <name>dss_sign(DigestType, Data, Key) -> Signature</name> <fsummary>Sign the data using dsa with given private key.</fsummary> <type> - <v>Digest = Mpint</v> + <v>DigestType = sha | none (default is sha)</v> + <v>Data = Mpint | ShaDigest</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>Mpint = binary()</v> + <v>ShaDigest = binary() with length 20 bytes</v> <v>Signature = binary()</v> </type> <desc> - <p>Calculates the sha digest of the <c>Data</c> - and creates a DSS signature with the private key <c>Key</c> - of the digest.</p> + <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> </desc> </func> <func> <name>dss_verify(Data, Signature, Key) -> Verified</name> + <name>dss_verify(DigestType, Data, Signature, Key) -> Verified</name> <fsummary>Verify the data and signature using dsa with given public key.</fsummary> <type> <v>Verified = boolean()</v> - <v>Digest, Signature = Mpint</v> + <v>DigestType = sha | none</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>Mpint = binary()</v> + <v>ShaDigest = binary() with length 20 bytes</v> </type> <desc> - <p>Calculates the sha digest of the <c>Data</c> and verifies that the - digest matches the DSS signature using the public key <c>Key</c>. - </p> + <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> </desc> </func> |