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Cipher, Identity and Protection Mechanisms

Cipher, Identity and Protection Mechanisms

Section: C Library Functions (3) Updated: Wed Dec 8 2010
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NAME

Cipher, Identity and Protection Mechanisms -

Eet allows one to protect entries of an Eet_File individually.

 

Typedefs


typedef struct _Eet_Key Eet_Key
Opaque handle that defines an identity (also known as key) in Eet's cipher system.
typedef int(* Eet_Key_Password_Callback )(char *buffer, int size, int rwflag, void *data)
Callback used to request if needed the password of a private key.  

Functions


EAPI Eet_Key * eet_identity_open (const char *certificate_file, const char *private_key_file, Eet_Key_Password_Callback cb)
Create an Eet_Key needed for signing an eet file.
EAPI void eet_identity_close (Eet_Key *key)
Close and release all ressource used by an Eet_Key.
EAPI Eet_Error eet_identity_set (Eet_File *ef, Eet_Key *key)
Set a key to sign a file.
EAPI void eet_identity_print (Eet_Key *key, FILE *out)
Display both private and public key of an Eet_Key.
EAPI const void * eet_identity_x509 (Eet_File *ef, int *der_length)
Get the x509 der certificate associated with an Eet_File.
EAPI const void * eet_identity_signature (Eet_File *ef, int *signature_length)
Get the raw signature associated with an Eet_File.
EAPI const void * eet_identity_sha1 (Eet_File *ef, int *sha1_length)
Get the SHA1 associated with a file.
EAPI void eet_identity_certificate_print (const unsigned char *certificate, int der_length, FILE *out)
Display the x509 der certificate to out.  

Detailed Description

Eet allows one to protect entries of an Eet_File individually.

This may be used to ensure data was not tampered or that third party does not read your data.

See also:

Eet File Ciphered Main Functions

Image Store and Load using a Cipher

 

Typedef Documentation

 

typedef int(* Eet_Key_Password_Callback)(char *buffer, int size, int rwflag, void *data)

Callback used to request if needed the password of a private key. Parameters:

buffer the buffer where to store the password.
size the maximum password size (size of buffer, including '\0').
rwflag if the buffer is also readable or just writable.
data currently unused, may contain some context in future.

Returns:

1 on success and password was set to buffer, 0 on failure.

Since:

1.2.0

 

Function Documentation

 

EAPI void eet_identity_certificate_print (const unsigned char * certificate, int der_length, FILE * out)

Display the x509 der certificate to out. Parameters:

certificate the x509 certificate to print
der_length The length the certificate.
out where to print.

Since:

1.2.0

 

EAPI void eet_identity_close (Eet_Key * key)

Close and release all ressource used by an Eet_Key. An reference counter prevent it from being freed until all file using it are also closed.

Parameters:

key the key handle to close and free resources.

Since:

1.2.0

 

EAPI Eet_Key* eet_identity_open (const char * certificate_file, const char * private_key_file, Eet_Key_Password_Callback cb)

Create an Eet_Key needed for signing an eet file. The certificate should provide the public that match the private key. No verification is done to ensure that.

Parameters:

certificate_file The file where to find the certificate.
private_key_file The file that contains the private key.
cb Function to callback if password is required to unlock private key.

Returns:

A key handle to use, or NULL on failure.

See also:

eet_identity_close()

Since:

1.2.0

 

EAPI void eet_identity_print (Eet_Key * key, FILE * out)

Display both private and public key of an Eet_Key. Parameters:

key the handle to print.
out where to print.

Since:

1.2.0

 

EAPI Eet_Error eet_identity_set (Eet_File * ef, Eet_Key * key)

Set a key to sign a file. Parameters:

ef the file to set the identity.
key the key handle to set as identity.

Returns:

EET_ERROR_BAD_OBJECT if ef is invalid or EET_ERROR_NONE on success.

Since:

1.2.0

References EET_ERROR_BAD_OBJECT, and EET_ERROR_NONE.  

EAPI const void* eet_identity_sha1 (Eet_File * ef, int * sha1_length)

Get the SHA1 associated with a file. Could be the one used to sign the data or if the data where not signed, it will be the SHA1 of the file.

Parameters:

ef The file handle to query.
sha1_length The length of returned data, may be NULL.

Returns:

the associated SHA1 or NULL on error.

Since:

1.2.0

 

EAPI const void* eet_identity_signature (Eet_File * ef, int * signature_length)

Get the raw signature associated with an Eet_File. Will return NULL if the file is not signed.

Parameters:

ef The file handle to query.
signature_length The length of returned data, may be NULL.

Returns:

the raw signature or NULL on error.

 

EAPI const void* eet_identity_x509 (Eet_File * ef, int * der_length)

Get the x509 der certificate associated with an Eet_File. Will return NULL if the file is not signed.

Parameters:

ef The file handle to query.
der_length The length of returned data, may be NULL.

Returns:

the x509 certificate or NULL on error.

Since:

1.2.0

 

Author

Generated automatically by Doxygen for Eet from the source code.


 

Index

NAME
Typedefs
Functions
Detailed Description
Typedef Documentation
typedef int(* Eet_Key_Password_Callback)(char *buffer, int size, int rwflag, void *data)
Function Documentation
EAPI void eet_identity_certificate_print (const unsigned char * certificate, int der_length, FILE * out)
EAPI void eet_identity_close (Eet_Key * key)
EAPI Eet_Key* eet_identity_open (const char * certificate_file, const char * private_key_file, Eet_Key_Password_Callback cb)
EAPI void eet_identity_print (Eet_Key * key, FILE * out)
EAPI Eet_Error eet_identity_set (Eet_File * ef, Eet_Key * key)
EAPI const void* eet_identity_sha1 (Eet_File * ef, int * sha1_length)
EAPI const void* eet_identity_signature (Eet_File * ef, int * signature_length)
EAPI const void* eet_identity_x509 (Eet_File * ef, int * der_length)
Author

This document was created by man2html, using the manual pages.
Time: 21:45:26 GMT, April 16, 2011