pkcs15-crypt - Online in the Cloud

PROGRAM:

NAME

pkcs15-crypt - perform crypto operations using PKCS#15 smart cards

SYNOPSIS

pkcs15-crypt [OPTIONS]

DESCRIPTION

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.

OPTIONS

--aid aid
Specify the AID of the on-card PKCS#15 application to bind to. The aid must be in
hexadecimal form.

--decipher, -c
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 (see also --raw).

--input file, -i file
Specifies the input file to use.

--key id, -k id
Selects the ID of the key to use.

--output file, -o file
Any output will be sent to the specified file.

--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 command line.

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. If you specify '-' as PIN, it will be
read from STDIN.

--pkcs1
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.

--raw, -R
Outputs raw 8 bit data.

--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.

--sha-1
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.

--sign, -s
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
--raw).

--signature-format, --f
When signing with ECDSA key this option indicates to pkcs15-crypt the signature output
format. Possible values are 'rs'(default) -- two concatanated integers (PKCS#11),
'sequence' or 'openssl' -- DER encoded sequence of two integeres (OpenSSL).

--verbose, -v
Causes pkcs15-crypt to be more verbose. Specify this flag several times to enable
debug output in the OpenSC library.

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