Additional warnings in cipher.h
@@ -89,8 +89,8 @@ typedef enum {
/**
* \brief Supported {cipher type, cipher mode} pairs.
*
- * \warning DES is considered weak cipher and its use
- * constitutes a security risk. Arm recommends considering stronger
+ * \warning DES/3DES are considered weak ciphers and their use
+ * constitutes a security risk. We recommend considering stronger
* ciphers instead.
*/
typedef enum {
@@ -126,12 +126,12 @@ typedef enum {
MBEDTLS_CIPHER_CAMELLIA_128_GCM, /**< Camellia cipher with 128-bit GCM mode. */
MBEDTLS_CIPHER_CAMELLIA_192_GCM, /**< Camellia cipher with 192-bit GCM mode. */
MBEDTLS_CIPHER_CAMELLIA_256_GCM, /**< Camellia cipher with 256-bit GCM mode. */
- MBEDTLS_CIPHER_DES_ECB, /**< DES cipher with ECB mode. */
- MBEDTLS_CIPHER_DES_CBC, /**< DES cipher with CBC mode. */
- MBEDTLS_CIPHER_DES_EDE_ECB, /**< DES cipher with EDE ECB mode. */
- MBEDTLS_CIPHER_DES_EDE_CBC, /**< DES cipher with EDE CBC mode. */
- MBEDTLS_CIPHER_DES_EDE3_ECB, /**< DES cipher with EDE3 ECB mode. */
- MBEDTLS_CIPHER_DES_EDE3_CBC, /**< DES cipher with EDE3 CBC mode. */
+ MBEDTLS_CIPHER_DES_ECB, /**< DES cipher with ECB mode. \warning DES is considered weak. */
+ MBEDTLS_CIPHER_DES_CBC, /**< DES cipher with CBC mode. \warning DES is considered weak. */
+ MBEDTLS_CIPHER_DES_EDE_ECB, /**< DES cipher with EDE ECB mode. \warning 3DES is considered weak. */
+ MBEDTLS_CIPHER_DES_EDE_CBC, /**< DES cipher with EDE CBC mode. \warning 3DES is considered weak. */
+ MBEDTLS_CIPHER_DES_EDE3_ECB, /**< DES cipher with EDE3 ECB mode. \warning 3DES is considered weak. */
+ MBEDTLS_CIPHER_DES_EDE3_CBC, /**< DES cipher with EDE3 CBC mode. \warning 3DES is considered weak. */
MBEDTLS_CIPHER_AES_128_CCM, /**< AES cipher with 128-bit CCM mode. */
MBEDTLS_CIPHER_AES_192_CCM, /**< AES cipher with 192-bit CCM mode. */
MBEDTLS_CIPHER_AES_256_CCM, /**< AES cipher with 256-bit CCM mode. */
@@ -217,11 +217,11 @@ typedef enum {
enum {
/** Undefined key length. */
MBEDTLS_KEY_LENGTH_NONE = 0,
- /** Key length, in bits (including parity), for DES keys. */
+ /** Key length, in bits (including parity), for DES keys. \warning DES is considered weak. */
MBEDTLS_KEY_LENGTH_DES = 64,
- /** Key length in bits, including parity, for DES in two-key EDE. */
+ /** Key length in bits, including parity, for DES in two-key EDE. \warning 3DES is considered weak. */
MBEDTLS_KEY_LENGTH_DES_EDE = 128,
- /** Key length in bits, including parity, for DES in three-key EDE. */
+ /** Key length in bits, including parity, for DES in three-key EDE. \warning 3DES is considered weak. */
MBEDTLS_KEY_LENGTH_DES_EDE3 = 192,
};
