crypto/adiantum.c

File Facts

System

Linux kernel

Corpus path

crypto/adiantum.c

Extension

.c

Size

22158 bytes

Lines

694

Domain

Kernel Services

Bucket

crypto

Inferred role

Kernel Services: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.

• Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• crypto/b128ops.h
• crypto/chacha.h
• crypto/internal/cipher.h
• crypto/internal/poly1305.h
• crypto/internal/skcipher.h
• crypto/nh.h
• crypto/scatterwalk.h
• linux/module.h

Detected Declarations

• struct adiantum_instance_ctx
• struct adiantum_tfm_ctx
• struct nhpoly1305_ctx
• struct adiantum_request_ctx
• function adiantum_setkey
• function le128_add
• function le128_sub
• function the
• function process_nh_hash_value
• function nhpoly1305_units
• function nhpoly1305_init
• function nhpoly1305_update
• function nhpoly1305_final
• function adiantum_hash_message
• function adiantum_crypt
• function adiantum_encrypt
• function adiantum_decrypt
• function adiantum_init_tfm
• function adiantum_exit_tfm
• function adiantum_free_instance
• function adiantum_supported_algorithms
• function adiantum_create
• function adiantum_module_init
• function adiantum_module_exit
• module init adiantum_module_init

Annotated Snippet

module_init(adiantum_module_init);
module_exit(adiantum_module_exit);

MODULE_DESCRIPTION("Adiantum length-preserving encryption mode");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Eric Biggers <ebiggers@google.com>");
MODULE_ALIAS_CRYPTO("adiantum");
MODULE_IMPORT_NS("CRYPTO_INTERNAL");

Annotation

• Immediate include surface: `crypto/b128ops.h`, `crypto/chacha.h`, `crypto/internal/cipher.h`, `crypto/internal/poly1305.h`, `crypto/internal/skcipher.h`, `crypto/nh.h`, `crypto/scatterwalk.h`, `linux/module.h`.
• Detected declarations: `struct adiantum_instance_ctx`, `struct adiantum_tfm_ctx`, `struct nhpoly1305_ctx`, `struct adiantum_request_ctx`, `function adiantum_setkey`, `function le128_add`, `function le128_sub`, `function the`, `function process_nh_hash_value`, `function nhpoly1305_units`.
• Atlas domain: Kernel Services / crypto.
• Implementation status: integration implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.