62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
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/* This header declares the necessary definitions for using the exponentiation
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* acceleration capabilities of Atalla cards. The only cryptographic operation
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* is performed by "ASI_RSAPrivateKeyOpFn" and this takes a structure that
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* defines an "RSA private key". However, it is really only performing a
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* regular mod_exp using the supplied modulus and exponent - no CRT form is
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* being used. Hence, it is a generic mod_exp function in disguise, and we use
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* it as such.
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*
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* Thanks to the people at Atalla for letting me know these definitions are
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* fine and that they can be reproduced here.
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*
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* Geoff.
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*/
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typedef struct ItemStr
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{
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unsigned char *data;
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int len;
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} Item;
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typedef struct RSAPrivateKeyStr
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{
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void *reserved;
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Item version;
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Item modulus;
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Item publicExponent;
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Item privateExponent;
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Item prime[2];
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Item exponent[2];
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Item coefficient;
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} RSAPrivateKey;
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/* Predeclare the function pointer types that we dynamically load from the DSO.
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* These use the same names and form that Ben's original support code had (in
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* crypto/bn/bn_exp.c) unless of course I've inadvertently changed the style
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* somewhere along the way!
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*/
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typedef int tfnASI_GetPerformanceStatistics(int reset_flag,
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unsigned int *ret_buf);
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typedef int tfnASI_GetHardwareConfig(long card_num, unsigned int *ret_buf);
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typedef int tfnASI_RSAPrivateKeyOpFn(RSAPrivateKey * rsaKey,
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unsigned char *output,
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unsigned char *input,
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unsigned int modulus_len);
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/* These are the static string constants for the DSO file name and the function
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* symbol names to bind to. Regrettably, the DSO name on *nix appears to be
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* "atasi.so" rather than something more consistent like "libatasi.so". At the
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* time of writing, I'm not sure what the file name on win32 is but clearly
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* native name translation is not possible (eg libatasi.so on *nix, and
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* atasi.dll on win32). For the purposes of testing, I have created a symbollic
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* link called "libatasi.so" so that we can use native name-translation - a
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* better solution will be needed. */
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static const char *ATALLA_LIBNAME = "atasi";
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static const char *ATALLA_F1 = "ASI_GetHardwareConfig";
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static const char *ATALLA_F2 = "ASI_RSAPrivateKeyOpFn";
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static const char *ATALLA_F3 = "ASI_GetPerformanceStatistics";
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