From: Roberto Sassu roberto.sassu@huawei.com
Export the public keys algorithm identifiers, so that user space can reference them when passing data to the kernel.
Define and export the pub_key_algo_name array, so that kernel subsystems can get the string associated to the public key algorithm identifier.
Signed-off-by: Roberto Sassu roberto.sassu@huawei.com --- crypto/Kconfig | 3 +++ crypto/Makefile | 1 + crypto/pub_key_info.c | 20 ++++++++++++++++++++ include/crypto/pub_key_info.h | 15 +++++++++++++++ include/uapi/linux/pub_key_info.h | 22 ++++++++++++++++++++++ 5 files changed, 61 insertions(+) create mode 100644 crypto/pub_key_info.c create mode 100644 include/crypto/pub_key_info.h create mode 100644 include/uapi/linux/pub_key_info.h
diff --git a/crypto/Kconfig b/crypto/Kconfig index 650b1b3620d..2558025461b 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -1420,6 +1420,9 @@ endmenu config CRYPTO_HASH_INFO bool
+config CRYPTO_PUB_KEY_INFO + bool + if !KMSAN # avoid false positives from assembly if ARM source "arch/arm/crypto/Kconfig" diff --git a/crypto/Makefile b/crypto/Makefile index 953a7e105e5..fcdb5918e58 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -206,6 +206,7 @@ obj-$(CONFIG_XOR_BLOCKS) += xor.o obj-$(CONFIG_ASYNC_CORE) += async_tx/ obj-$(CONFIG_ASYMMETRIC_KEY_TYPE) += asymmetric_keys/ obj-$(CONFIG_CRYPTO_HASH_INFO) += hash_info.o +obj-$(CONFIG_CRYPTO_PUB_KEY_INFO) += pub_key_info.o crypto_simd-y := simd.o obj-$(CONFIG_CRYPTO_SIMD) += crypto_simd.o
diff --git a/crypto/pub_key_info.c b/crypto/pub_key_info.c new file mode 100644 index 00000000000..d12a08e5972 --- /dev/null +++ b/crypto/pub_key_info.c @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2023 Huawei Technologies Duesseldorf GmbH + * + * Public key info: Public key algorithms information + */ + +#include <linux/export.h> +#include <crypto/pub_key_info.h> + +const char *const pub_key_algo_name[PKEY_ALGO__LAST] = { + [PKEY_ALGO_RSA] = "rsa", + [PKEY_ALGO_ECDSA] = "ecdsa", + [PKEY_ALGO_ECDSA_P192] = "ecdsa-nist-p192", + [PKEY_ALGO_ECDSA_P256] = "ecdsa-nist-p256", + [PKEY_ALGO_ECDSA_P384] = "ecdsa-nist-p384", + [PKEY_ALGO_ECRDSA] = "ecrdsa", + [PKEY_ALGO_SM2] = "sm2", +}; +EXPORT_SYMBOL_GPL(pub_key_algo_name); diff --git a/include/crypto/pub_key_info.h b/include/crypto/pub_key_info.h new file mode 100644 index 00000000000..ea411792778 --- /dev/null +++ b/include/crypto/pub_key_info.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Copyright (C) 2023 Huawei Technologies Duesseldorf GmbH + * + * Public key info: Public key algorithms information + */ + +#ifndef _CRYPTO_PUB_KEY_INFO_H +#define _CRYPTO_PUB_KEY_INFO_H + +#include <uapi/linux/pub_key_info.h> + +extern const char *const pub_key_algo_name[PKEY_ALGO__LAST]; + +#endif /* _CRYPTO_PUB_KEY_INFO_H */ diff --git a/include/uapi/linux/pub_key_info.h b/include/uapi/linux/pub_key_info.h new file mode 100644 index 00000000000..a5595969156 --- /dev/null +++ b/include/uapi/linux/pub_key_info.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Copyright (C) 2023 Huawei Technologies Duesseldorf GmbH + * + * Public key info: Public key algorithms information + */ + +#ifndef _UAPI_LINUX_PUB_KEY_INFO_H +#define _UAPI_LINUX_PUB_KEY_INFO_H + +enum pub_key_algo { + PKEY_ALGO_RSA, + PKEY_ALGO_ECDSA, + PKEY_ALGO_ECDSA_P192, + PKEY_ALGO_ECDSA_P256, + PKEY_ALGO_ECDSA_P384, + PKEY_ALGO_ECRDSA, + PKEY_ALGO_SM2, + PKEY_ALGO__LAST, +}; + +#endif /* _UAPI_LINUX_PUB_KEY_INFO_H */