lib/crypto/aes.c

File Facts

System

Linux kernel

Corpus path

lib/crypto/aes.c

Extension

.c

Size

27266 bytes

Lines

760

Domain

Kernel Services

Bucket

lib

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/aes-cbc-macs.h
• crypto/aes.h
• crypto/utils.h
• linux/cache.h
• linux/crypto.h
• linux/export.h
• linux/module.h
• linux/unaligned.h
• fips.h
• aes.h

Detected Declarations

• function aes_prefetch
• function mul_by_x
• function mul_by_x2
• function mix_columns
• function inv_mix_columns
• function subw
• function aes_expandkey_generic
• function aes_expandkey
• function enc_quarterround
• function enclast_quarterround
• function aes_encrypt_generic
• function dec_quarterround
• function declast_quarterround
• function aes_decrypt_generic
• function aes_preparekey_arch
• function aes_encrypt_arch
• function aes_decrypt_arch
• function __aes_preparekey
• function aes_preparekey
• function aes_prepareenckey
• function aes_encrypt
• function aes_decrypt
• function aes_cbcmac_blocks_arch
• function aes_cbcmac_blocks
• function aes_cmac_preparekey
• function aes_xcbcmac_preparekey
• function aes_cmac_update
• function aes_cmac_final
• function aes_cbcmac_update
• function aes_cbcmac_final
• function aes_cmac_fips_test
• function aes_cmac_fips_test
• function aes_mod_exit
• module init aes_mod_init
• export crypto_aes_sbox
• export crypto_aes_inv_sbox
• export aes_enc_tab
• export aes_dec_tab
• export aes_expandkey
• export aes_preparekey
• export aes_prepareenckey
• export aes_encrypt
• export aes_decrypt
• export aes_cmac_preparekey
• export aes_xcbcmac_preparekey
• export aes_cmac_update
• export aes_cmac_final

Annotated Snippet

subsys_initcall(aes_mod_init);

static void __exit aes_mod_exit(void)
{
}
module_exit(aes_mod_exit);

MODULE_DESCRIPTION("AES block cipher");
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_AUTHOR("Eric Biggers <ebiggers@kernel.org>");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `crypto/aes-cbc-macs.h`, `crypto/aes.h`, `crypto/utils.h`, `linux/cache.h`, `linux/crypto.h`, `linux/export.h`, `linux/module.h`, `linux/unaligned.h`.
• Detected declarations: `function aes_prefetch`, `function mul_by_x`, `function mul_by_x2`, `function mix_columns`, `function inv_mix_columns`, `function subw`, `function aes_expandkey_generic`, `function aes_expandkey`, `function enc_quarterround`, `function enclast_quarterround`.
• Atlas domain: Kernel Services / lib.
• 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.