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In previous versions of Cryptoki, C_CancelFunctioncancelled a function running in parallel with an application. Now, however, C_CancelFunctionis a legacy function which should simply return the value CKR_FUNCTION_NOT_PARALLEL. In previous versions of Cryptoki, C_GetFunctionStatusobtained the status of a function running in parallel with an application. Now, however, C_GetFunctionStatus is a legacy function which should simply return the value CKR_FUNCTION_NOT_PARALLEL. C_SeedRandom mixes additional seed material into the token’s random number generator.

This function may be called any number of times in succession, and may be interspersed with C_SignUpdate and C_EncryptUpdatecalls. Because of this, it is critical that when an application uses a padded decryption mechanism with C_DecryptDigestUpdate, it knows exactly how much plaintext has been passed into the active digesting operation. Extreme caution is warranted when using a padded decryption mechanism with C_DecryptDigestUpdate. This function may be called any number of times in succession, and may be interspersed with C_DecryptUpdate, C_DigestUpdate, andC_DigestKey calls . This function may be called any number of times in succession, and may be interspersed with C_DigestUpdate, C_DigestKey, and C_EncryptUpdatecalls . The CKA_SIGN attribute of the signature key, which indicates whether the key supports signatures with appendix, MUST be CK_TRUE.

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Since the types of keys to be generated are implicit in the key pair generation mechanism, the templates do not need to supply key types. If one of the templates does supply a key type which is inconsistent with the key generation mechanism, C_GenerateKeyPair fails and returns the error code CKR_TEMPLATE_INCONSISTENT. C_GenerateKey generates a secret key or set of domain parameters, creating a new object. C_FindObjects continues a search for token and session objects that match a template, obtaining additional object handles. C_FindObjectsInit initializes a search for token and session objects that match a template.

• If the library is unable to function properly under this restriction, C_Initialize should return with the value CKR_NEED_TO_CREATE_THREADS.
• For most mechanisms, C_Encrypt is equivalent to a sequence of C_EncryptUpdate operations followed by C_EncryptFinal.
• Descriptions of the other Cryptoki function return values follow.
• Enter data in these fields only when you manually enter asset information and you want to use these fields for identification purposes.
• If case 2 applies to any of the requested attributes, then the call should return the value CKR_ATTRIBUTE_TYPE_INVALID.
• Certificates and CA certificates issued to other organizations.

Furthermore, the set of slots accessible through a Cryptoki library is checked at the time that C_GetSlotList, for list length prediction is called. If an application calls C_GetSlotListwith a non-NULL pSlotList, and then the user adds or removes a hardware device, the changed slot list will only be visible and effective if C_GetSlotListis called again with NULL. Even if C_ GetSlotList is successfully called this way, it may or may not be the case that the changed slot list will be successfully recognized depending on the library implementation. On some platforms, or earlier PKCS11 compliant libraries, it may be necessary to successfully call C_Initialize or to restart the entire system.

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The CKA_HASH_OF_SUBJECT_PUBLIC_KEY and CKA_HASH_OF_ISSUER_PUBLIC_KEYattributes are used to store the hashes of the public keys of the subject and the issuer. They are particularly important when only the URL is available to be able to correlate a certificate with a private key and when searching for the certificate of the issuer. All Cryptoki functions that create, modify, or copy objects take a template as one of their arguments, where the template specifies attribute values.

The generation of the KCV may be prevented by the application supplying the attribute in the template as a no-value entry. The application can query the value at any time like any other attribute using C_GetAttributeValue. C_SetAttributeValue may https://turbo-tax.org/a be used to destroy the attribute, by supplying no-value. If the CKA_SENSITIVE attribute is CK_TRUE, or if the CKA_EXTRACTABLEattribute is CK_FALSE, then certain attributes of the secret key cannot be revealed in plaintext outside the token.

6.3 X.509 public key certificate objects

The attribute is optional, but if supported, regardless of how the key object is created or derived, the value of the attribute is always supplied. It SHALL be supplied even if the encryption operation for the key is forbidden (i.e. when CKA_ENCRYPT is set to CK_FALSE). The CKA_ALWAYS_AUTHENTICATE attribute can be used to force re-authentication form 8824 link-1 should be blank (i.e. force the user to provide a PIN) for each use of a private key. “Use” in this case means a cryptographic operation such as sign or decrypt. This attribute may only be set to CK_TRUE when CKA_PRIVATEis also CK_TRUE. BER-encoding of a sequence of object identifier values corresponding to the attribute types contained in the certificate.