SPSDK IPED - PRINCE Cipher Backend
High-performance C++ PRINCE cipher backend for SPSDK's IPED (Inline PRINCE Encryption/Decryption) module.
Installation
Prerequisites
A C++ compiler is required to build the native PRINCE cipher library:
- Linux/macOS: GCC or Clang (install via your package manager)
- Windows: MS Build Tools (instructions)
Install from source
pip install -e path/to/spsdk_plugins/iped
Install from Bitbucket
pip install git+ssh://git@bitbucket.sw.nxp.com/spsdk/spsdk_plugins.git#subdirectory=iped
Usage with SPSDK
When this package is installed, SPSDK's IPED module automatically detects the C++ backend and uses it for ~100-150x faster PRINCE cipher operations compared to the built-in pure-Python fallback.
No additional configuration is needed — just install the package alongside SPSDK.
Standalone usage
from spsdk_iped import IPED
# CTR mode encryption
cipher = IPED(key=0x01, address=0x80003000, iv=0x79EAFAB3A72412A1)
encrypted = cipher.encrypt(plaintext_bytes)
# Decryption
cipher2 = IPED(key=0x01, address=0x80003000, iv=0x79EAFAB3A72412A1)
decrypted = cipher2.decrypt(encrypted)
Performance
The C++ backend provides approximately 100-150x speedup over the pure-Python implementation:
| Backend | Throughput |
|---|---|
| Python (built-in) | ~0.03 MB/s |
| C++ (this package) | ~5 MB/s |
License
BSD-3-Clause
1 maintainer
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