Check whether the mechanism is supported for that particular card. If you have the
document like 'CryptoKI programming guide for the card', it will be specified there.
----------
Q: What is the difference between ignorance and apathy?
A: "I don't know, and I don't care."
>-----Original Message-----
>From: Smita Ayyadevara [mailto:[EMAIL PROTECTED]]
>Sent: Wednesday, January 31, 2001 1:39 AM
>To: [EMAIL PROTECTED]
>Cc: Smita Ayyadevara
>Subject: [OCF] PKCS #11: Mechanism for C_DigestInit and C_VerifyInit
>
>
>Hi,
>
>This query is not of OCF but of PKCS #11 standards.
>I am using Cyberflex Access 00 cards and reflex 72 card
>reader. I have two
>questions, one for digest and other for verification of signature.
>
>1. I want to hash a piece of data with SHA1 algorithm using PKCS #11
>cryptoki API. Following is the code I am using for initializing
>message-digesting operation.
>
> CK_MECHANISM mechanism;
> CK_RV status;
>
> mechanism.mechanism = CKM_SHA_1;
> mechanism.pParameter = NULL_PTR;
> mechanism.ulParameterLen = 0;
> status = (*ckFunc->C_DigestInit)(hSession, &mechanism);
>
>I am getting CKR_MECHANISM_INVALID error in C_DigestInit.
>I tried to use other mechanisms as well, but with all others
>also the error
>was same.
>
>Am I doing something wrong here or this card do not support digest
>mechanism?
>In this case how shall I get the digest of the data?
>
>2. I am using mechanism CKM_RSA_PKCS for initializing signing of data
>(C_SignInit) and then signing the data in one step (C_Sign),
>which works
>fine. Now for verifying the signature I am using the same mechanism to
>initialize verification (CKM_RSA_PKCS). At this step I am getting error
>CKR_MECHANISM_INVALID.
>Can anyone suggest me if I am wrong at any place, how can I verify the
>signature?
>
>Thank you,
>
>Regards,
>Smita
>
>
>
>---
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