diff options
Diffstat (limited to 'crypto/testmgr.c')
| -rw-r--r-- | crypto/testmgr.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/crypto/testmgr.c b/crypto/testmgr.c index ccd19cfee995..975e1eac3e2d 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -30,6 +30,7 @@ #include <linux/string.h> #include <crypto/rng.h> #include <crypto/drbg.h> +#include <crypto/akcipher.h> #include "internal.h" @@ -116,6 +117,11 @@ struct drbg_test_suite { unsigned int count; }; +struct akcipher_test_suite { + struct akcipher_testvec *vecs; + unsigned int count; +}; + struct alg_test_desc { const char *alg; int (*test)(const struct alg_test_desc *desc, const char *driver, @@ -130,6 +136,7 @@ struct alg_test_desc { struct hash_test_suite hash; struct cprng_test_suite cprng; struct drbg_test_suite drbg; + struct akcipher_test_suite akcipher; } suite; }; @@ -1825,6 +1832,147 @@ static int alg_test_drbg(const struct alg_test_desc *desc, const char *driver, } +static int do_test_rsa(struct crypto_akcipher *tfm, + struct akcipher_testvec *vecs) +{ + struct akcipher_request *req; + void *outbuf_enc = NULL; + void *outbuf_dec = NULL; + struct tcrypt_result result; + unsigned int out_len_max, out_len = 0; + int err = -ENOMEM; + + req = akcipher_request_alloc(tfm, GFP_KERNEL); + if (!req) + return err; + + init_completion(&result.completion); + err = crypto_akcipher_setkey(tfm, vecs->key, vecs->key_len); + if (err) + goto free_req; + + akcipher_request_set_crypt(req, vecs->m, outbuf_enc, vecs->m_size, + out_len); + /* expect this to fail, and update the required buf len */ + crypto_akcipher_encrypt(req); + out_len = req->dst_len; + if (!out_len) { + err = -EINVAL; + goto free_req; + } + + out_len_max = out_len; + err = -ENOMEM; + outbuf_enc = kzalloc(out_len_max, GFP_KERNEL); + if (!outbuf_enc) + goto free_req; + + akcipher_request_set_crypt(req, vecs->m, outbuf_enc, vecs->m_size, + out_len); + akcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, + tcrypt_complete, &result); + + /* Run RSA encrypt - c = m^e mod n;*/ + err = wait_async_op(&result, crypto_akcipher_encrypt(req)); + if (err) { + pr_err("alg: rsa: encrypt test failed. err %d\n", err); + goto free_all; + } + if (out_len != vecs->c_size) { + pr_err("alg: rsa: encrypt test failed. Invalid output len\n"); + err = -EINVAL; + goto free_all; + } + /* verify that encrypted message is equal to expected */ + if (memcmp(vecs->c, outbuf_enc, vecs->c_size)) { + pr_err("alg: rsa: encrypt test failed. Invalid output\n"); + err = -EINVAL; + goto free_all; + } + /* Don't invoke decrypt for vectors with public key */ + if (vecs->public_key_vec) { + err = 0; + goto free_all; + } + outbuf_dec = kzalloc(out_len_max, GFP_KERNEL); + if (!outbuf_dec) { + err = -ENOMEM; + goto free_all; + } + init_completion(&result.completion); + akcipher_request_set_crypt(req, outbuf_enc, outbuf_dec, vecs->c_size, + out_len); + + /* Run RSA decrypt - m = c^d mod n;*/ + err = wait_async_op(&result, crypto_akcipher_decrypt(req)); + if (err) { + pr_err("alg: rsa: decrypt test failed. err %d\n", err); + goto free_all; + } + out_len = req->dst_len; + if (out_len != vecs->m_size) { + pr_err("alg: rsa: decrypt test failed. Invalid output len\n"); + err = -EINVAL; + goto free_all; + } + /* verify that decrypted message is equal to the original msg */ + if (memcmp(vecs->m, outbuf_dec, vecs->m_size)) { + pr_err("alg: rsa: decrypt test failed. Invalid output\n"); + err = -EINVAL; + } +free_all: + kfree(outbuf_dec); + kfree(outbuf_enc); +free_req: + akcipher_request_free(req); + return err; +} + +static int test_rsa(struct crypto_akcipher *tfm, struct akcipher_testvec *vecs, + unsigned int tcount) +{ + int ret, i; + + for (i = 0; i < tcount; i++) { + ret = do_test_rsa(tfm, vecs++); + if (ret) { + pr_err("alg: rsa: test failed on vector %d, err=%d\n", + i + 1, ret); + return ret; + } + } + return 0; +} + +static int test_akcipher(struct crypto_akcipher *tfm, const char *alg, + struct akcipher_testvec *vecs, unsigned int tcount) +{ + if (strncmp(alg, "rsa", 3) == 0) + return test_rsa(tfm, vecs, tcount); + + return 0; +} + +static int alg_test_akcipher(const struct alg_test_desc *desc, + const char *driver, u32 type, u32 mask) +{ + struct crypto_akcipher *tfm; + int err = 0; + + tfm = crypto_alloc_akcipher(driver, type | CRYPTO_ALG_INTERNAL, mask); + if (IS_ERR(tfm)) { + pr_err("alg: akcipher: Failed to load tfm for %s: %ld\n", + driver, PTR_ERR(tfm)); + return PTR_ERR(tfm); + } + if (desc->suite.akcipher.vecs) + err = test_akcipher(tfm, desc->alg, desc->suite.akcipher.vecs, + desc->suite.akcipher.count); + + crypto_free_akcipher(tfm); + return err; +} + static int alg_test_null(const struct alg_test_desc *desc, const char *driver, u32 type, u32 mask) { @@ -3453,6 +3601,16 @@ static const struct alg_test_desc alg_test_descs[] = { } } }, { + .alg = "rsa", + .test = alg_test_akcipher, + .fips_allowed = 1, + .suite = { + .akcipher = { + .vecs = rsa_tv_template, + .count = RSA_TEST_VECTORS + } + } + }, { .alg = "salsa20", .test = alg_test_skcipher, .suite = { |