---
id: aws-cryptographic-material-providers
version: "1.11.2"
license: unclear
license_treatment: unclear
maintenance: active
---

# aws-cryptographic-material-providers — AWS Cryptographic Material Providers Library for Python

License: unclear · Maintenance: active · Downloads: 540.4K/mo

## What it is and what it does

This is AWS's cryptographic materials provider library for Python, designed to manage encryption keys and derived cryptographic material in AWS-integrated applications. It abstracts key management operations—including generation, derivation, and caching—and provides integration points with AWS KMS for key storage and rotation. The library is built on four internal AWS cryptography modules (dynamodb, kms, primitives, and standard-library) and exposes a MaterialProviders client that applications use to create keyrings and crypto materials managers.

The library targets modern Python (3.11+) and is actively maintained. It handles both simple and complex key hierarchies, supports envelope encryption patterns, and provides thread-safe client and manager implementations—though KMS-backed keyrings themselves are not thread-safe due to boto3 session constraints. It's intended for developers building encrypted storage, messaging, or data processing systems that need AWS-native key management without managing raw cryptographic keys directly.

Use it for:

- Encrypt data at rest in S3 or DynamoDB using AWS KMS-managed keys without handling raw key material
- Implement envelope encryption in multi-tenant applications where each tenant's data is encrypted with derived keys
- Build encrypted messaging or event systems that cache cryptographic material to reduce KMS API calls
- Integrate encryption into data pipelines that require key rotation and audit trails via AWS KMS

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Provides cryptographic material management and key derivation for AWS-integrated encryption workflows, handling key generation, caching, and integration with AWS KMS.

Yes, if you are building AWS-integrated applications that need encryption with centralized key management. The library is actively maintained, has no known vulnerabilities, and low install friction. Install with caution only if your license terms are unclear—verify the actual license before adopting in a commercial project, since the metadata does not declare it explicitly.

## Install

pip install aws-cryptographic-material-providers
uv add aws-cryptographic-material-providers
poetry add aws-cryptographic-material-providers

## Installing aws-cryptographic-material-providers

Before you install: Low friction installation as a pure Python wheel. Actively maintained with recent releases. Requires cryptography >= 43.0.1 and boto3 >= 1.35.42 as runtime dependencies, plus system-level prerequisites for the cryptography library on some platforms.

License in practice: License treatment is unclear in the package metadata, so you should verify the actual license terms before adopting this in a commercial or copyleft-sensitive project.

Quickstart:

pip install aws-cryptographic-material-providers

from aws_cryptographic_material_providers.material_providers import MaterialProviders

client = MaterialProviders()
# Use client to create keyrings and crypto materials managers

Requires Python 3.11 or later; cryptography >= 43.0.1 and boto3 >= 1.35.42 must be installed. KMS-based keyrings are not thread-safe when shared across threads.

Verify before relying:

- Exact license terms and SPDX identifier (metadata shows 'unclear' treatment)
- Whether thread-safe keyring implementations with caching support are planned
- Performance characteristics and throughput limits for high-volume key derivation

## Package facts

- License: not declared (unclear)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 540.4K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

AWS KMS key management, cryptographic material providers, envelope encryption AWS, key derivation and caching, AWS encryption materials library, cryptographic key management, AWS data key generation, aws-integration, key-management, envelope-encryption

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