| Fapi_Decrypt(3) | tpm2-tss | Fapi_Decrypt(3) |
NAME
Fapi_Decrypt - Fapi_Decrypt
SYNOPSIS
Functions
TSS2_RC Fapi_Decrypt (FAPI_CONTEXT *context, char
const *keyPath, uint8_t const *cipherText, size_t cipherTextSize, uint8_t
**plainText, size_t *plainTextSize)
TSS2_RC Fapi_Decrypt_Async (FAPI_CONTEXT *context, char const
*keyPath, uint8_t const *cipherText, size_t cipherTextSize)
TSS2_RC Fapi_Decrypt_Finish (FAPI_CONTEXT *context, uint8_t
**plainText, size_t *plainTextSize)
Detailed Description
FAPI functions to invoke Decrypt either as one-call or in an asynchronous manner.
Function Documentation
TSS2_RC Fapi_Decrypt (FAPI_CONTEXT * context, char const * keyPath, uint8_t const * cipherText, size_t cipherTextSize, uint8_t ** plainText, size_t * plainTextSize)
One-Call function for Fapi_Decrypt
Decrypts data that was previously encrypted with Fapi_Encrypt.
Parameters
context The FAPI_CONTEXT
keyPath The decryption key.
cipherText The ciphertext to decrypt.
cipherTextSize The size of the ciphertext to decrypt.
plainText the decrypted ciphertext. May be NULL (callee-allocated)
plainTextSize The size of the ciphertext in bytes. May be NULL
keyPath The decryption key.
cipherText The ciphertext to decrypt.
cipherTextSize The size of the ciphertext to decrypt.
plainText the decrypted ciphertext. May be NULL (callee-allocated)
plainTextSize The size of the ciphertext in bytes. May be NULL
Return values
TSS2_RC_SUCCESS if the function call was a
success.
TSS2_FAPI_RC_BAD_REFERENCE if context or cipherText is NULL.
TSS2_FAPI_RC_BAD_CONTEXT if context corruption is detected.
TSS2_FAPI_RC_KEY_NOT_FOUND if can't find the key necessary to decrypt the file.
TSS2_FAPI_RC_BAD_KEY if the decryption key is unsuitable for the requested operation.
TSS2_FAPI_RC_BAD_VALUE if the decryption fails
TSS2_FAPI_RC_BAD_SEQUENCE if the context has an asynchronous operation already pending.
TSS2_FAPI_RC_IO_ERROR if the data cannot be saved.
TSS2_FAPI_RC_MEMORY if the FAPI cannot allocate enough memory for internal operations or return parameters.
TSS2_FAPI_RC_NO_TPM if FAPI was initialized in no-TPM-mode via its config file.
TSS2_FAPI_RC_GENERAL_FAILURE if an internal error occurred.
TSS2_FAPI_RC_TRY_AGAIN if an I/O operation is not finished yet and this function needs to be called again.
TSS2_FAPI_RC_PATH_NOT_FOUND if a FAPI object path was not found during authorization.
TSS2_FAPI_RC_AUTHORIZATION_UNKNOWN if a required authorization callback is not set.
TSS2_FAPI_RC_AUTHORIZATION_FAILED if the authorization attempt fails.
TSS2_FAPI_RC_POLICY_UNKNOWN if policy search for a certain policy digest was not successful.
TSS2_ESYS_RC_* possible error codes of ESAPI.
TSS2_FAPI_RC_NOT_PROVISIONED FAPI was not provisioned.
TSS2_FAPI_RC_BAD_PATH if the path is used in inappropriate context or contains illegal characters.
TSS2_FAPI_RC_BAD_REFERENCE if context or cipherText is NULL.
TSS2_FAPI_RC_BAD_CONTEXT if context corruption is detected.
TSS2_FAPI_RC_KEY_NOT_FOUND if can't find the key necessary to decrypt the file.
TSS2_FAPI_RC_BAD_KEY if the decryption key is unsuitable for the requested operation.
TSS2_FAPI_RC_BAD_VALUE if the decryption fails
TSS2_FAPI_RC_BAD_SEQUENCE if the context has an asynchronous operation already pending.
TSS2_FAPI_RC_IO_ERROR if the data cannot be saved.
TSS2_FAPI_RC_MEMORY if the FAPI cannot allocate enough memory for internal operations or return parameters.
TSS2_FAPI_RC_NO_TPM if FAPI was initialized in no-TPM-mode via its config file.
TSS2_FAPI_RC_GENERAL_FAILURE if an internal error occurred.
TSS2_FAPI_RC_TRY_AGAIN if an I/O operation is not finished yet and this function needs to be called again.
TSS2_FAPI_RC_PATH_NOT_FOUND if a FAPI object path was not found during authorization.
TSS2_FAPI_RC_AUTHORIZATION_UNKNOWN if a required authorization callback is not set.
TSS2_FAPI_RC_AUTHORIZATION_FAILED if the authorization attempt fails.
TSS2_FAPI_RC_POLICY_UNKNOWN if policy search for a certain policy digest was not successful.
TSS2_ESYS_RC_* possible error codes of ESAPI.
TSS2_FAPI_RC_NOT_PROVISIONED FAPI was not provisioned.
TSS2_FAPI_RC_BAD_PATH if the path is used in inappropriate context or contains illegal characters.
TSS2_RC Fapi_Decrypt_Async (FAPI_CONTEXT * context, char const * keyPath, uint8_t const * cipherText, size_t cipherTextSize)
Asynchronous function for Fapi_Decrypt
Decrypts data that was previously encrypted with Fapi_Encrypt.
Call Fapi_Decrypt_Finish to finish the execution of this command.
Parameters
context The FAPI_CONTEXT
keyPath The decryption key.
cipherText The ciphertext to decrypt
cipherTextSize The size of the ciphertext to decrypt
keyPath The decryption key.
cipherText The ciphertext to decrypt
cipherTextSize The size of the ciphertext to decrypt
Return values
TSS2_RC_SUCCESS if the function call was a
success.
TSS2_FAPI_RC_BAD_REFERENCE if context or cipherText is NULL.
TSS2_FAPI_RC_BAD_CONTEXT if context corruption is detected.
TSS2_FAPI_RC_KEY_NOT_FOUND if can't find the key necessary to decrypt the file.
TSS2_FAPI_RC_BAD_KEY if the decryption key is unsuitable for the requested operation.
TSS2_FAPI_RC_BAD_VALUE if the decryption fails
TSS2_FAPI_RC_BAD_SEQUENCE if the context has an asynchronous operation already pending.
TSS2_FAPI_RC_IO_ERROR if the data cannot be saved.
TSS2_FAPI_RC_MEMORY if the FAPI cannot allocate enough memory for internal operations or return parameters.
TSS2_FAPI_RC_NO_TPM if FAPI was initialized in no-TPM-mode via its config file.
TSS2_FAPI_RC_BAD_REFERENCE if context or cipherText is NULL.
TSS2_FAPI_RC_BAD_CONTEXT if context corruption is detected.
TSS2_FAPI_RC_KEY_NOT_FOUND if can't find the key necessary to decrypt the file.
TSS2_FAPI_RC_BAD_KEY if the decryption key is unsuitable for the requested operation.
TSS2_FAPI_RC_BAD_VALUE if the decryption fails
TSS2_FAPI_RC_BAD_SEQUENCE if the context has an asynchronous operation already pending.
TSS2_FAPI_RC_IO_ERROR if the data cannot be saved.
TSS2_FAPI_RC_MEMORY if the FAPI cannot allocate enough memory for internal operations or return parameters.
TSS2_FAPI_RC_NO_TPM if FAPI was initialized in no-TPM-mode via its config file.
TSS2_RC Fapi_Decrypt_Finish (FAPI_CONTEXT * context, uint8_t ** plainText, size_t * plainTextSize)
Asynchronous finish function for Fapi_Decrypt
This function should be called after a previous Fapi_Decrypt.
Parameters
context The FAPI_CONTEXT
plainText the decrypted ciphertext. May be NULL (callee-allocated)
plainTextSize The size of the ciphertext in bytes. May be NULL
plainText the decrypted ciphertext. May be NULL (callee-allocated)
plainTextSize The size of the ciphertext in bytes. May be NULL
Return values
TSS2_RC_SUCCESS if the function call was a
success.
TSS2_FAPI_RC_BAD_REFERENCE if context, plainText or plainTextSize is NULL.
TSS2_FAPI_RC_BAD_CONTEXT if context corruption is detected.
TSS2_FAPI_RC_BAD_SEQUENCE if the context has an asynchronous operation already pending.
TSS2_FAPI_RC_IO_ERROR if the data cannot be saved.
TSS2_FAPI_RC_MEMORY if the FAPI cannot allocate enough memory for internal operations or return parameters.
TSS2_FAPI_RC_TRY_AGAIN if the asynchronous operation is not yet complete. Call this function again later.
TSS2_FAPI_RC_GENERAL_FAILURE if an internal error occurred.
TSS2_FAPI_RC_BAD_VALUE if an invalid value was passed into the function.
TSS2_FAPI_RC_PATH_NOT_FOUND if a FAPI object path was not found during authorization.
TSS2_FAPI_RC_KEY_NOT_FOUND if a key was not found.
TSS2_FAPI_RC_AUTHORIZATION_UNKNOWN if a required authorization callback is not set.
TSS2_FAPI_RC_AUTHORIZATION_FAILED if the authorization attempt fails.
TSS2_FAPI_RC_POLICY_UNKNOWN if policy search for a certain policy digest was not successful.
TSS2_ESYS_RC_* possible error codes of ESAPI.
TSS2_FAPI_RC_NOT_PROVISIONED FAPI was not provisioned.
TSS2_FAPI_RC_BAD_PATH if the path is used in inappropriate context or contains illegal characters.
TSS2_FAPI_RC_BAD_REFERENCE if context, plainText or plainTextSize is NULL.
TSS2_FAPI_RC_BAD_CONTEXT if context corruption is detected.
TSS2_FAPI_RC_BAD_SEQUENCE if the context has an asynchronous operation already pending.
TSS2_FAPI_RC_IO_ERROR if the data cannot be saved.
TSS2_FAPI_RC_MEMORY if the FAPI cannot allocate enough memory for internal operations or return parameters.
TSS2_FAPI_RC_TRY_AGAIN if the asynchronous operation is not yet complete. Call this function again later.
TSS2_FAPI_RC_GENERAL_FAILURE if an internal error occurred.
TSS2_FAPI_RC_BAD_VALUE if an invalid value was passed into the function.
TSS2_FAPI_RC_PATH_NOT_FOUND if a FAPI object path was not found during authorization.
TSS2_FAPI_RC_KEY_NOT_FOUND if a key was not found.
TSS2_FAPI_RC_AUTHORIZATION_UNKNOWN if a required authorization callback is not set.
TSS2_FAPI_RC_AUTHORIZATION_FAILED if the authorization attempt fails.
TSS2_FAPI_RC_POLICY_UNKNOWN if policy search for a certain policy digest was not successful.
TSS2_ESYS_RC_* possible error codes of ESAPI.
TSS2_FAPI_RC_NOT_PROVISIONED FAPI was not provisioned.
TSS2_FAPI_RC_BAD_PATH if the path is used in inappropriate context or contains illegal characters.
Author
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| Sun May 7 2023 | Version 4.0.1 |