ssi_util_key_derivation_defs.h 4.2 KB

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  34. #ifndef _SSI_UTIL_KEY_DERIVATION_DEFS_H
  35. #define _SSI_UTIL_KEY_DERIVATION_DEFS_H
  36. /*!
  37. @file
  38. @brief This file contains the definitions for the key derivation API.
  39. @defgroup ssi_utils_key_defs CryptoCell utils general key definitions
  40. @{
  41. @ingroup ssi_utils
  42. */
  43. #ifdef __cplusplus
  44. extern "C"
  45. {
  46. #endif
  47. /******************************************************************************
  48. * DEFINITIONS
  49. ******************************************************************************/
  50. /*! Maximal label length in bytes. */
  51. #define SASI_UTIL_MAX_LABEL_LENGTH_IN_BYTES 64
  52. /*! Maximal context length in bytes. */
  53. #define SASI_UTIL_MAX_CONTEXT_LENGTH_IN_BYTES 64
  54. /*! Minimal fixed data size in bytes. */
  55. #define SASI_UTIL_FIX_DATA_MIN_SIZE_IN_BYTES 3 /*!< \internal counter, 0x00, lengt(-0xff) */
  56. /*! Maximal fixed data size in bytes. */
  57. #define SASI_UTIL_FIX_DATA_MAX_SIZE_IN_BYTES 4 /*!< \internal counter, 0x00, lengt(0x100-0xff0) */
  58. /*! Maximal derived key material size in bytes. */
  59. #define SASI_UTIL_MAX_KDF_SIZE_IN_BYTES (SASI_UTIL_MAX_LABEL_LENGTH_IN_BYTES+ \
  60. SASI_UTIL_MAX_CONTEXT_LENGTH_IN_BYTES+SASI_UTIL_FIX_DATA_MAX_SIZE_IN_BYTES)
  61. /*! Maximal derived key size in bytes. */
  62. #define SASI_UTIL_MAX_DERIVED_KEY_SIZE_IN_BYTES 4080
  63. #ifdef __cplusplus
  64. }
  65. #endif
  66. /**
  67. @}
  68. */
  69. #endif /*_SSI_UTIL_KEY_DERIVATION_DEFS_H*/