crypto/md4.c

File Facts

System

Linux kernel

Corpus path

crypto/md4.c

Extension

.c

Size

6045 bytes

Lines

242

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• crypto/internal/hash.h
• linux/init.h
• linux/kernel.h
• linux/module.h
• linux/string.h
• linux/types.h
• asm/byteorder.h

Detected Declarations

• struct md4_ctx
• function lshift
• function F
• function G
• function H
• function md4_transform
• function md4_transform_helper
• function md4_init
• function md4_update
• function md4_final
• function md4_mod_init
• function md4_mod_fini
• module init md4_mod_init

Annotated Snippet

module_init(md4_mod_init);
module_exit(md4_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("MD4 Message Digest Algorithm");
MODULE_ALIAS_CRYPTO("md4");

Annotation

• Immediate include surface: `crypto/internal/hash.h`, `linux/init.h`, `linux/kernel.h`, `linux/module.h`, `linux/string.h`, `linux/types.h`, `asm/byteorder.h`.
• Detected declarations: `struct md4_ctx`, `function lshift`, `function F`, `function G`, `function H`, `function md4_transform`, `function md4_transform_helper`, `function md4_init`, `function md4_update`, `function md4_final`.
• 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.