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tpm2_rsadecrypt - performs RSA decryption using the indicated padding

tpm2_rsadecrypt(8) tpm2.0-tools tpm2_rsadecrypt(8)

NAME

tpm2_rsadecrypt - performs RSA decryption using the indicated padding scheme according to IETF RFC 3447 (PKCS#1). The scheme of keyHandle should not be TPM_ALG_NULL. The key referenced by keyHandle is required to be an RSA key (TPM_RC_KEY) with the decrypt attribute SET (TPM_RC_ATTRIBUTES).

SYNOPSIS

tpm2_rsadecrypt[ COMMON OPTIONS ] [ TCTI OPTIONS ] [ --keyHandle|--keyContext| --pwdk|--inFile|--outFile| --passwdInHex| ]
performs RSA decryption using the indicated padding scheme according to IETF RFC 3447 (PKCS#1). The scheme of keyHandle should not be TPM_ALG_NULL. The key referenced by keyHandle is required to be an RSA key (TPM_RC_KEY) with the decrypt attribute SET (TPM_RC_ATTRIBUTES).

DESCRIPTION

tpm2_rsadecrypt performs RSA decryption using the indicated padding scheme according to IETF RFC 3447 (PKCS#1). The scheme of keyHandle should not be TPM_ALG_NULL. The key referenced by keyHandle is required to be an RSA key (TPM_RC_KEY) with the decrypt attribute SET (TPM_RC_ATTRIBUTES).

OPTIONS

-k ,--keyHandle
the public portion of RSA key to use for decryption
-c ,--keyContext
filename of the key context used for the operation
-P ,--pwdk
the password of key, optional
-I ,--inFile
Input file path, containing the data to be decrypted
-o ,--outFile
Output file path, record the decrypted data
-X ,--passwdInHex
passwords given by any options are hex format.
[COMMON OPTIONS ]
This collection of options are common to many programs and provide information that many users may expect.
-h, --help
Display a manual describing the tool and its usage.
-v, --version
Display version information for this tool.
-V, --verbose
Increase the information that the tool prints to the console during its execution.
[TCTI OPTIONS ]
This collection of options are used to configure the varous TCTI modules available.
-T, --tcti
Select the TCTI used for communication with the next component down the TSS stack. In most configurations this will be the TPM but it could be a simulator or proxy. Supported TCTIs are or “device” or “socket”
-d, --device-file
Specify the TPM device file for use by the device TCTI. The default is /dev/tpm0.
 
-R, --socket-address
Specify the domain name or IP address used by the socket TCTI. The default is 127.0.0.1.
-p, --socket-port
Specify the port number used by the socket TCTI. The default is 2321.
ENVIRONMENT: TCTI
This collection of environment variables that may be used to configure the varous TCTI modules available. The values passed through these variables can be overridden on a per-command basis using the available command line options.
TPM2TOOLS_TCTI_NAME
Select the TCTI used for communication with the next component down the TSS stack. In most configurations this will be the TPM but it could be a simulator or proxy. See ' OPTIONS' section for the names of supported TCTIs.
TPM2TOOLS_DEVICE_FILE
Specify the TPM device file for use by the device TCTI.
 
TPM2TOOLS_SOCKET_ADDRESS
Specify the domain name or IP address used by the socket TCTI.
TPM2TOOLS_SOCKET_PORT
Specify the port number used by the socket TCTI.

EXAMPLES

tpm2_rsadecrypt
tpm2_rsadecrypt -k 0x81010001 -I <filePath> -o <filePath>
tpm2_rsadecrypt -k 0x81010001 -P 123abc -X -I <filePath> -o <filePath>

DECEMBER 2016 Intel