pysqlcrypt
Python implementation of SQL Server's ENCRYPTBYPASSPHRASE and DECRYPTBYPASSPHRASE functions.
Quick Start
pip install pysqlcrypt
from pysqlcrypt import encrypt_by_passphrase, decrypt_by_passphrase, SQLCryptVersion
# Encrypt
ciphertext = encrypt_by_passphrase("passphrase", "plaintext", SQLCryptVersion.V2)
# Decrypt with auto-detection (recommended)
plaintext = decrypt_by_passphrase("passphrase", ciphertext, encoding="auto")
API
encrypt_by_passphrase(passphrase, plaintext, version=V1, authenticator=None, *, encoding="utf-8")
Returns encrypted bytes. Use SQLCryptVersion.V1 for SQL Server 2008-2016, SQLCryptVersion.V2 for 2017+.
decrypt_by_passphrase(passphrase, ciphertext, *, authenticator=None, encoding=None)
Returns decrypted bytes, or str if encoding is specified. Accepts bytes or hex string (with or without 0x prefix).
Encoding Options
| Value | Behavior |
|---|---|
None |
Returns raw bytes |
"auto" |
Auto-detects UTF-16LE (NVARCHAR) vs UTF-8 |
"utf-8" |
Decodes as UTF-8 (VARCHAR) |
"utf-16-le" |
Decodes as UTF-16LE (NVARCHAR) |
Version Reference
| Version | SQL Server | Algorithm |
|---|---|---|
| V1 | 2008-2016 | 3DES-CBC, SHA1 |
| V2 | 2017+ | AES-256-CBC, SHA256 |
Notes
- Use
encoding="auto"for mixed VARCHAR/NVARCHAR data - The
authenticatorparameter embeds additional context data for verification - Decryption auto-detects the version from the ciphertext header
License
MIT
🍌
1 maintainer
Release files for pysqlcrypt 0.2.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| pysqlcrypt-0.2.0.tar.gz | 4.5 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| pysqlcrypt-0.2.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 9.5 kB
Release files / pysqlcrypt-0.2.0.tar.gz
| Download URL | pysqlcrypt-0.2.0.tar.gz |
|---|---|
| Size | 4.5 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
9aa211fbabdd6fc92c20f3aa8ee43b2388692ba58c9296913a96528393c1e505
|
|
BLAKE2b-256 checksum How to use checksums |
13f24a9130b7fc19aca933b19cf20ea9f781b8769a9e0e13274440ba9f9de1d4
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Dec 28, 2025.
Transparency logRelease files / pysqlcrypt-0.2.0-py3-none-any.whl
| Download URL | pysqlcrypt-0.2.0-py3-none-any.whl |
|---|---|
| Size | 5.0 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
e34ccd4b8cbc378c94211afbe9518b7e2fa5ce7541580b12161d44efd3a12b26
|
|
BLAKE2b-256 checksum How to use checksums |
b1594065017a8a4c50304cf31500aa555654dd2aba155ab3eae55ea6a95737f8
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Dec 28, 2025.
Transparency log
