[Muscle] muscletools and sign

[Michael StJohns]

Some card manufacturers do provide some card specific extra mechanism which do "raw" signatures.

E.g.  ALG_ECDSA_NOHASH. 

Ask your card provider or reseller.

Mike



At 12:23 PM 6/11/2009, s.ferey wrote:
>erbalibera erbalibera a écrit :
>>is It the same for dsa with sha-1? If yes wich provider is supporting a cipher for dsa?
>
>the same than ?? the ciphers that don't use DIR_SIGN ?
>
>the constraints on cipher and signature classes are not defined
>by card provider but by SUN thru the JavaCard API.
>(a provider may or not provide a concrete implementation of a
>mechanism but when provided it shall conform to SUN specifications).
>
>DSA & ECDSA mechanisms are only available with signature classe,
>so to obtain such signatures you must let the card hashs the data;
>you can not use a cipher class together with a pre-computed digest.
>
>Sylvain.
>
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