Tcl

Convert DSA PEM Private Key to DER

See more DSA Examples

Converts a DSA private key from PEM format to DER. The first part of the example will convert an unencrypted PEM to DER, then 2nd part will convert an encrypted PEM to unencrypted DER. Tcl

load ./chilkat.dll

set success 0

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

set dsa [new_CkDsa]

# Load a PEM private key.

set pemPrivateKey [CkDsa_loadText $dsa "dsa_priv.pem"]
# Import the unencrypted PEM into the DSA object.
set success [CkDsa_FromPem $dsa $pemPrivateKey]
if {$success != 1} then {
    puts [CkDsa_lastErrorText $dsa]
    delete_CkDsa $dsa
    exit
}

# Write it out as a DER file:
set success [CkDsa_ToDerFile $dsa "dsa_priv.der"]
if {$success != 1} then {
    puts [CkDsa_lastErrorText $dsa]
    delete_CkDsa $dsa
    exit
}

# Load an encrypted PEM private key.
set pemPrivateKey [CkDsa_loadText $dsa "dsa_privEncrypted.pem"]
# Import the encrypted PEM into the DSA object.
set success [CkDsa_FromEncryptedPem $dsa "myPassword" $pemPrivateKey]
if {$success != 1} then {
    puts [CkDsa_lastErrorText $dsa]
    delete_CkDsa $dsa
    exit
}

# Write it out as an unencrypted DER file:
set success [CkDsa_ToDerFile $dsa "dsa_priv2.der"]
if {$success != 1} then {
    puts [CkDsa_lastErrorText $dsa]
    delete_CkDsa $dsa
    exit
}

puts "Finished!"

delete_CkDsa $dsa