(Tcl) PKCS11 Generate Secret Key (such as AES)

See more PKCS11 Examples

Note: This example requires Chilkat v9.5.0.96 or later.

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load ./chilkat.dll

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

set pkcs11 [new_CkPkcs11]

# Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
# (The format of the path will change with the operating system.  Obviously, "C:/" is not used on non-Windows systems.
CkPkcs11_put_SharedLibPath $pkcs11 "C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll"

# Establish a logged-on session.
set pin "0000"
set userType 1
set success [CkPkcs11_QuickSession $pkcs11 $userType $pin]
if {$success == 0} then {
    puts [CkPkcs11_lastErrorText $pkcs11]
    delete_CkPkcs11 $pkcs11
    exit
}

# Let's generate a 256-bit AES key on the token, which will exist for the duration of this session.
# Symmetric keys, such as AES keys, are typically created (or imported) and used during a single session.

# Other possible values for keyType are "AES XTS", "Blowfish", "Twofish", "ChaCha20", and others. 
# In virtually all cases, you'll want to create an AES key.
set keyType "AES"

# Specify attributes and abilities (how this key can be used) by providing a JSON template.
set json [new_CkJsonObject]

# The key can be extracted or wrapped.
CkJsonObject_UpdateBool $json "extractable" 1

# Allow the key to be used for encryption, decryption, wrapping other keys, and unwrapping other keys.
CkJsonObject_UpdateBool $json "encrypt" 1
CkJsonObject_UpdateBool $json "decrypt" 1
CkJsonObject_UpdateBool $json "wrap" 1
CkJsonObject_UpdateBool $json "unwrap" 1

# Indicate a 256-bit AES key is to be generated by setting the value_len attribute equal to the key size in bytes.
# (32 bytes * 8 bits/byte = 256 bits)
CkJsonObject_UpdateInt $json "value_len" 32

set keyHandle [CkPkcs11_GenSecretKey $pkcs11 $keyType $json]
if {$keyHandle == 0} then {
    puts [CkPkcs11_lastErrorText $pkcs11]
    puts "Failed to generate an AES key."
} else {
    puts "key handle = $keyHandle"
    puts "Success."
}

CkPkcs11_Logout $pkcs11
CkPkcs11_CloseSession $pkcs11

delete_CkPkcs11 $pkcs11
delete_CkJsonObject $json