1tpm_sealdata(3) Library Functions Manual tpm_sealdata(3)
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5 TPM Management - tpmUnsealFile, tpmUnsealShred, tpmUnsealStrerror
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8 tpmUnsealFile, tpmUnsealShred, tpmUnsealStrerror - unseal routines
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11 #include <tpm_unseal/tpm_unseal.h>
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13 int tpmUnsealFile(char* file, char** data, int* size);
14 void tpmUnsealShred(char* data, int size);
15 char* tpmUnsealStrerror(int rc);
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19 The functions in the tpmUnseal family allow access to a piece of
20 sensitive data that has been sealed to the TPM configuration of a given
21 system if the conditions are right, that is the SRK has not changed and
22 the PCRS (if any) specified at seal time are of the appropriate value.
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24 The tpmUnsealFile function returns the contents of the file unsealed in
25 the data buffer. The memory at *data must be freed by the caller.
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27 The tpmUnsealShred function will zero and free the memory.
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29 The tpmUnsealStrerror function will convert the return code from
30 tpmUnsealFile into a human comprehensible string using and internal
31 errno variable.
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35 The tpmUnsealFile function returns 0 on success and a negative number
36 on error. The tpmUnsealStrerror function returns the error string on
37 success and the empty string on an error.
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41 tpm_sealdata(1)
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45 Report bugs to <trousers-users@lists.sourceforge.net>
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49TPM Management 2005-08-10 tpm_sealdata(3)