pylibsrtp
Python wrapper around the libsrtp library
Decision gist · record as of 2026-08-14
Yes, if you need SRTP packet encryption in Python and can meet the libsrtp 2.0+ system dependency. The package is stable, permissively licensed, and widely downloaded (top 5000 on PyPI). Install friction is moderate due to the compiled dependency, but prebuilt wheels are available for most platforms. Maintenance is aging—no vulnerabilities are known, but the 305-day release gap suggests the project is not actively developed; use it for production only if you accept that bug fixes or feature updates may be infrequent.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires libsrtp 2.0 or later installed on the system (apt/dnf/brew depending on OS); Python 3.10 or later.
- Medium install friction due to compiled wheels; requires libsrtp 2.0 or later as a system dependency.
- Maintenance is aging—last release was 305 days ago, though the repository remains active with recent commits and no archived status.
License · maintenance · safety
BSD-3-Clause (permissive) — Released under BSD-3-Clause (permissive), allowing commercial and private use with minimal restrictions; suitable for most projects.
last release 2025-10-13 (305 days) · last repo commit 2025-10-13 · 38 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 2,027,178 downloads/mo, #3,354 on PyPI
Alternatives
Verify before relying
pip install pylibsrtp
from pylibsrtp import Policy, Session
key = b'\x00' * 30
rtp = b'\x80\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' + (b'\xd4' * 160)
tx_policy = Policy(key=key, ssrc_type=Policy.SSRC_ANY_OUTBOUND)
tx_session = Session(policy=tx_policy)
srtp = tx_session.protect(rtp)- Whether the package is actively maintained or in maintenance-only mode given the 305-day release gap.
- Performance characteristics and throughput for high-volume RTP stream protection.
- Compatibility with specific RTP implementations or media frameworks beyond basic packet protection.
What it is and what it does
pylibsrtp is a Python wrapper around the Cisco libsrtp C library, enabling SRTP packet encryption and decryption directly from Python. SRTP is a security profile of RTP (Real-time Transport Protocol) that adds confidentiality, message authentication, and replay protection—essential for securing voice, video, and other real-time media streams. The package exposes a Policy and Session API to configure encryption keys and SSRC handling, then protect or unprotect individual RTP packets.
The package depends on cffi for C bindings and requires libsrtp 2.0 or later as a system library. It supports Python 3.10 through 3.14 and is distributed as precompiled wheels for most major platforms (Linux, macOS, Windows, including ARM variants), reducing build friction. The project is marked Production/Stable but shows aging maintenance—the last release was 305 days ago, though the repository remains active.
Use it for
- Encrypt RTP streams in WebRTC applications to ensure media confidentiality between peers.
- Protect VoIP packets in SIP-based telephony systems using standards-compliant SRTP.
- Implement media security in custom real-time communication frameworks that handle raw RTP.
- Validate or decrypt SRTP packets in network monitoring or protocol analysis tools.
- Secure multicast RTP streams where multiple receivers share the same encryption key.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need SRTP packet encryption in Python and can meet the libsrtp 2.0+ system dependency.
The package is stable, permissively licensed, and widely downloaded (top 5000 on PyPI). Install friction is moderate due to the compiled dependency, but prebuilt wheels are available for most platforms. Maintenance is aging—no vulnerabilities are known, but the 305-day release gap suggests the project is not actively developed; use it for production only if you accept that bug fixes or feature updates may be infrequent.
Install
pylibsrtp on PyPI
Before you install
Medium install friction due to compiled wheels; requires libsrtp 2.0 or later as a system dependency. Maintenance is aging—last release was 305 days ago, though the repository remains active with recent commits and no archived status.
Requires libsrtp 2.0 or later installed on the system (apt/dnf/brew depending on OS); Python 3.10 or later.
License in practice
Released under BSD-3-Clause (permissive), allowing commercial and private use with minimal restrictions; suitable for most projects.
Quickstart
pip install pylibsrtp
from pylibsrtp import Policy, Session
key = b'\x00' * 30
rtp = b'\x80\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' + (b'\xd4' * 160)
tx_policy = Policy(key=key, ssrc_type=Policy.SSRC_ANY_OUTBOUND)
tx_session = Session(policy=tx_policy)
srtp = tx_session.protect(rtp)Verify before relying
- Whether the package is actively maintained or in maintenance-only mode given the 305-day release gap.
- Performance characteristics and throughput for high-volume RTP stream protection.
- Compatibility with specific RTP implementations or media frameworks beyond basic packet protection.
Package facts
| License | BSD-3-Clause permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | 1 packagecffi |
| Maintenance | Aging 305 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 2,027,178 / month, #3,354 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Topic :: Communications :: TelephonyTopic :: Security :: Cryptography |
Evidence: pylibsrtp-1.0.0-cp310-abi3-macosx_10_9_x86_64.whl; pylibsrtp-1.0.0-cp310-abi3-macosx_11_0_arm64.whl; pylibsrtp-1.0.0-cp310-abi3-manylinux_2_26_aarch64.manylinux_2_28_aarch64.whl; pylibsrtp-1.0.0-cp310-abi3-manylinux_2_26_x86_64.manylinux_2_28_x86_64.whl; pylibsrtp-1.0.0-cp310-abi3-manylinux_2_28_i686.whl; pylibsrtp-1.0.0-cp310-abi3-musllinux_1_2_aarch64.whl; pylibsrtp-1.0.0-cp310-abi3-musllinux_1_2_i686.whl; pylibsrtp-1.0.0-cp310-abi3-musllinux_1_2_x86_64.whl; pylibsrtp-1.0.0-cp310-abi3-win32.whl; pylibsrtp-1.0.0-cp310-abi3-win_amd64.whl; pylibsrtp-1.0.0-cp310-abi3-win_arm64.whl
Tags
Let your AI agent find packages like this
Example. Real query, live index.
You found this page by searching. An agent finds it by wishing: SkillFed indexes 14,416 PyPI packages by what they can do, searchable in plain language.
wish › “srtp encryption decryption”
- pylibsrtppylibsrtp encrypts and decrypts Secure Real-time Transport Protocol…
- pyragepyrage provides Python bindings to the Rust implementation of age,…
- kasa-cryptProvides fast encryption and decryption functions for JSON and other…
Give your agent the search over MCP, or paste the wish link into any chat.
More Cryptography packages
Certifi provides Mozilla's curated collection of root SSL certificates for Python applications to validate TLS hosts and verify certificate trustworthiness.
cryptography provides cryptographic recipes and low-level primitives for symmetric encryption, message digests, key derivation, and other common cryptographic algorithms in Python.
Pure-Python RSA encryption, decryption, signing, and key generation following PKCS#1 v1.5, with command-line and library interfaces.
pyOpenSSL wraps OpenSSL's SSL/TLS functionality for Python, providing high-level connection objects and certificate handling through a Python-friendly interface around OpenSSL's cryptographic operations.
Provides Microsoft Entra ID token-based authentication for Azure SDK clients through a set of TokenCredential implementations that handle OAuth flows and managed identity support.
PyNaCl provides Python bindings to libsodium for digital signatures, secret-key and public-key encryption, hashing, message authentication, and password-based key derivation.
See also rtp · pyAesCrypt · aiortsp · PyRMVtransport · oscrypto · PGPy · PyOTP · dynamodb-encryption-sdk · thrift-sasl