Provided by: opensc_0.10.1-1_i386
pkcs15-crypt - perform crypto operations using pkcs15 smart card
The pkcs15-crypt utility can be used from the command line to perform
cryptographic operations such as computing digital signatures or
decrypting data, using keys stored on a PKCS #15 compliant smart card.
Perform digital signature operation on the data read from a file
specified using the input option. By default, the contents of
the file are assumed to be the result of an MD5 hash operation.
Note that pkcs15-crypt expects the data in binary
representation, not ASCII.
The digital signature is stored, in binary representation, in
the file specified by the output option. If this option is not
given, the signature is printed on standard output, displaying
non-printable characters using their hex notation xNN (see also
By default, pkcs15-crypt assumes that input data has been padded
to the correct length (i.e. when computing an RSA signature
using a 1024 bit key, the input must be padded to 128 bytes to
match the modulus length). When giving the --pkcs1 option,
however, pkcs15-crypt will perform the required padding using
the algorithm outlined in the PKCS #1 standard version 1.5.
This option tells pkcs15-crypt that the input file is the result
of an SHA1 hash operation, rather than an MD5 hash. Again, the
data must be in binary representation.
Decrypt the contents of the file specified by the --input
option. The result of the decryption operation is written to the
file specified by the--output option. If this option is not
given, the decrypted data is printed to standard output,
displaying non-printable characters using their hex notation xNN
--key id, -k id
Selects the ID of the key to use.
--reader N, -r N
Selects the N-th smart card reader configured by the system. If
unspecified,pkcs15-crypt will use the first reader found.
--input file, -i file
Specifies the input file to use.
--output file, -o file
Any output will be sent to the specified file.
Outputs raw 8 bit data.
--pin pin, -p pin
When the cryptographic operation requires a PIN to access the
key, pkcs15-crypt will prompt the user for the PIN on the
terminal. Using this option allows you to specify the PIN on the
Note that on most operating systems, the command line of a
process can be displayed by any user using the ps(1) command. It
is therefore a security risk to specify secret information such
as PINs on the command line.
Causes pkcs15-crypt to be more verbose. Specify this flag
several times to enable debug output in the OpenSC library.