include/crypto/internal/rsa.h

Source file repositories/reference/linux-study-clean/include/crypto/internal/rsa.h

File Facts

System
Linux kernel
Corpus path
include/crypto/internal/rsa.h
Extension
.h
Size
2290 bytes
Lines
87
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct rsa_key {
	const u8 *n;
	const u8 *e;
	const u8 *d;
	const u8 *p;
	const u8 *q;
	const u8 *dp;
	const u8 *dq;
	const u8 *qinv;
	size_t n_sz;
	size_t e_sz;
	size_t d_sz;
	size_t p_sz;
	size_t q_sz;
	size_t dp_sz;
	size_t dq_sz;
	size_t qinv_sz;
};

int rsa_parse_pub_key(struct rsa_key *rsa_key, const void *key,
		      unsigned int key_len);

int rsa_parse_priv_key(struct rsa_key *rsa_key, const void *key,
		       unsigned int key_len);

#define RSA_PUB (true)
#define RSA_PRIV (false)

static inline int rsa_set_key(struct crypto_akcipher *child,
			      unsigned int *key_size, bool is_pubkey,
			      const void *key, unsigned int keylen)
{
	int err;

	*key_size = 0;

	if (is_pubkey)
		err = crypto_akcipher_set_pub_key(child, key, keylen);
	else
		err = crypto_akcipher_set_priv_key(child, key, keylen);
	if (err)
		return err;

	/* Find out new modulus size from rsa implementation */
	err = crypto_akcipher_maxsize(child);
	if (err > PAGE_SIZE)
		return -ENOTSUPP;

	*key_size = err;
	return 0;
}

extern struct crypto_template rsa_pkcs1pad_tmpl;
extern struct crypto_template rsassa_pkcs1_tmpl;
#endif

Annotation

Implementation Notes