Tcl

Simple AES ECB Decryption

See more Encryption Examples

Decrypt 256-bit encrypted content. Tcl

load ./chilkat.dll

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

set crypt [new_CkCrypt2]

# Encrypted content (base64-encoded)
set ct "d/95VziAnUNKkpXr3dJBFcQqAEDWlDkc7EU2jLkYPxmr6PpLRJlgHos+/Uy28CvJsmztQ3JkJAMukVoj46QJ/7RMuqLb31cSKd1ZvMzx9J9b6q0EkmPJcSfBhf2x7v5Qvq3lz1EIH7RM61cDGf+g9p4lt6FtU2MzCqtYD+Vr29voCn5WU1CnXmks64RrbyDA1DDHOx2deJ4Kn68+KoPM9tAw9kbf4HApL1nJYU3Mfzl+MnuHuB2kJpL5GqbuNvS+4QjxuwtNGuZEEY0gOS4RIvWl/XfkxtWHMkzsKy08AO792xDGer4rL4Q1NcfI/H2V"

# 256-bit AES key (literally the 32 us-ascii bytes of this string)
set key "sQsPQYesBM5qEM5OSxicFatIiLM459Bu"

# Note: If your AES key is a string, and it's not clearly hex or base64, AND if the length of the string is the exact size of the AES key,
# then *literally* use the ascii chars as the AES key.

CkCrypt2_put_CryptAlgorithm $crypt "aes"
CkCrypt2_put_CipherMode $crypt "ecb"
CkCrypt2_put_KeyLength $crypt 256
# use the exact ascii bytes as the key.
CkCrypt2_SetEncodedKey $crypt $key "ascii"
CkCrypt2_put_EncodingMode $crypt "base64"

set pt [CkCrypt2_decryptStringENC $crypt $ct]

puts "$pt"

delete_CkCrypt2 $crypt