lib/crypto/sha512.c

Source file repositories/reference/linux-study-clean/lib/crypto/sha512.c

File Facts

System: Linux kernel
Corpus path: lib/crypto/sha512.c
Extension: .c
Size: 13795 bytes
Lines: 441
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/hmac.h
crypto/sha2.h
linux/export.h
linux/kernel.h
linux/module.h
linux/overflow.h
linux/string.h
linux/unaligned.h
linux/wordpart.h
fips.h
sha512.h

Detected Declarations

function sha512_block_generic
function sha512_blocks_generic
function __sha512_init
function sha384_init
function sha512_init
function __sha512_update
function __sha512_final
function sha384_final
function sha512_final
function sha384
function sha512
function __hmac_sha512_preparekey
function hmac_sha384_preparekey
function hmac_sha512_preparekey
function __hmac_sha512_init
function hmac_sha384_init_usingrawkey
function hmac_sha512_init_usingrawkey
function __hmac_sha512_final
function hmac_sha384_final
function hmac_sha512_final
function hmac_sha384
function hmac_sha512
function hmac_sha384_usingrawkey
function hmac_sha512_usingrawkey
function sha512_mod_init
function sha512_mod_exit
module init sha512_mod_init
export sha384_init
export sha512_init
export __sha512_update
export sha384_final
export sha512_final
export sha384
export sha512
export hmac_sha384_preparekey
export hmac_sha512_preparekey
export __hmac_sha512_init
export hmac_sha384_init_usingrawkey
export hmac_sha512_init_usingrawkey
export hmac_sha384_final
export hmac_sha512_final
export hmac_sha384
export hmac_sha512
export hmac_sha384_usingrawkey
export hmac_sha512_usingrawkey

Annotated Snippet

subsys_initcall(sha512_mod_init);

static void __exit sha512_mod_exit(void)
{
}
module_exit(sha512_mod_exit);
#endif

MODULE_DESCRIPTION("SHA-384, SHA-512, HMAC-SHA384, and HMAC-SHA512 library functions");
MODULE_LICENSE("GPL");

Annotation

Immediate include surface: `crypto/hmac.h`, `crypto/sha2.h`, `linux/export.h`, `linux/kernel.h`, `linux/module.h`, `linux/overflow.h`, `linux/string.h`, `linux/unaligned.h`.
Detected declarations: `function sha512_block_generic`, `function sha512_blocks_generic`, `function __sha512_init`, `function sha384_init`, `function sha512_init`, `function __sha512_update`, `function __sha512_final`, `function sha384_final`, `function sha512_final`, `function sha384`.
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.