The Linux Kernel
Development process
Submitting patches
Code of conduct
Maintainer handbook
All development-process docs
Core API
Driver APIs
Subsystems
Core subsystems
Human interfaces
Networking interfaces
Storage interfaces
Other subsystems
Accounting
CPUFreq - CPU frequency and voltage scaling code in the Linux(TM) kernel
EDAC Subsystem
FPGA
I2C/SMBus Subsystem
Industrial I/O
PCMCIA
Serial Peripheral Interface (SPI)
1-Wire Subsystem
Watchdog Support
Virtualization Support
Hardware Monitoring
Compute Accelerators
Security Documentation
Crypto API
Kernel Crypto API Interface Specification
Scatterlist Cryptographic API
Kernel Crypto API Architecture
Asynchronous Transfers/Transforms API
Asymmetric / Public-key Cryptography Key Type
Developing Cipher Algorithms
User Space Interface
Crypto Engine
Programming Interface
Symmetric Key Cipher
Authenticated Encryption With Associated Data (AEAD)
Message Digest
Random Number Generator (RNG)
Asymmetric Cipher
Asymmetric Signature
Key-agreement Protocol Primitives (KPP)
Code Examples
Fast & Portable DES encryption & decryption
Hardware Device Driver Specific Documentation
Kerberos V Cryptography API
BPF Documentation
USB support
PCI Bus Subsystem
Assorted Miscellaneous Devices Documentation
PECI Subsystem
WMI Subsystem
TEE Subsystem
Locking
Licensing rules
Writing documentation
Development tools
Testing guide
Hacking guide
Tracing
Fault injection
Livepatching
Rust
Administration
Build system
Reporting issues
Userspace tools
Userspace API
Firmware
Firmware and Devicetree
CPU architectures
Unsorted documentation
Translations
The Linux Kernel
Kernel subsystem documentation
Crypto API
Programming Interface
View page source
Programming Interface
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Table of contents
Symmetric Key Cipher
Block Cipher Algorithm Definitions
Symmetric Key Cipher API
Symmetric Key Cipher Request Handle
Single Block Cipher API
Authenticated Encryption With Associated Data (AEAD)
Authenticated Encryption With Associated Data (AEAD) Algorithm Definitions
Authenticated Encryption With Associated Data (AEAD) Cipher API
Asynchronous AEAD Request Handle
Message Digest
Message Digest Algorithm Definitions
Asynchronous Message Digest API
Asynchronous Hash Request Handle
Synchronous Message Digest API
Random Number Generator (RNG)
Random Number Algorithm Definitions
Crypto API Random Number API
Asymmetric Cipher
Asymmetric Cipher Algorithm Definitions
Asymmetric Cipher API
Asymmetric Cipher Request Handle
Asymmetric Signature
Asymmetric Signature Algorithm Definitions
Asymmetric Signature API
Key-agreement Protocol Primitives (KPP)
Key-agreement Protocol Primitives (KPP) Cipher Algorithm Definitions
Key-agreement Protocol Primitives (KPP) Cipher API
Key-agreement Protocol Primitives (KPP) Cipher Request Handle
ECDH Helper Functions
DH Helper Functions