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| ntlm_core(3) | Heimdalntlmlibrary | ntlm_core(3) |
NAME
ntlm_coreSYNOPSIS
Functions
void heim_ntlm_free_buf (struct ntlm_buf *p)
void heim_ntlm_free_targetinfo (struct ntlm_targetinfo *ti)
int heim_ntlm_encode_targetinfo (const struct ntlm_targetinfo *ti, int ucs2, struct ntlm_buf *data)
int heim_ntlm_decode_targetinfo (const struct ntlm_buf *data, int ucs2, struct ntlm_targetinfo *ti)
void heim_ntlm_free_type1 (struct ntlm_type1 *data)
int heim_ntlm_encode_type1 (const struct ntlm_type1 *type1, struct ntlm_buf *data)
void heim_ntlm_free_type2 (struct ntlm_type2 *data)
int heim_ntlm_encode_type2 (const struct ntlm_type2 *type2, struct ntlm_buf *data)
void heim_ntlm_free_type3 (struct ntlm_type3 *data)
int heim_ntlm_encode_type3 (const struct ntlm_type3 *type3, struct ntlm_buf *data, size_t *mic_offset)
int heim_ntlm_nt_key (const char *password, struct ntlm_buf *key)
int heim_ntlm_calculate_ntlm1 (void *key, size_t len, unsigned char challenge[8], struct ntlm_buf *answer)
int heim_ntlm_build_ntlm1_master (void *key, size_t len, struct ntlm_buf *session, struct ntlm_buf *master)
int heim_ntlm_build_ntlm2_master (void *key, size_t len, struct ntlm_buf *blob, struct ntlm_buf *session, struct ntlm_buf *master)
int heim_ntlm_keyex_unwrap (struct ntlm_buf *baseKey, struct ntlm_buf *encryptedSession, struct ntlm_buf *session)
int heim_ntlm_ntlmv2_key (const void *key, size_t len, const char *username, const char *target, int upper_case_target, unsigned char ntlmv2[16])
int heim_ntlm_calculate_lm2 (const void *key, size_t len, const char *username, const char *target, const unsigned char serverchallenge[8], unsigned char ntlmv2[16], struct ntlm_buf *answer)
int heim_ntlm_calculate_ntlm2 (const void *key, size_t len, const char *username, const char *target, const unsigned char serverchallenge[8], const struct ntlm_buf *infotarget, unsigned char ntlmv2[16], struct ntlm_buf *answer)
int heim_ntlm_verify_ntlm2 (const void *key, size_t len, const char *username, const char *target, time_t now, const unsigned char serverchallenge[8], const struct ntlm_buf *answer, struct ntlm_buf *infotarget, unsigned char ntlmv2[16])
Detailed Description
The NTLM core functions implement the string2key generation function, message encode and decode function, and the hash function functions.Function Documentation
int heim_ntlm_build_ntlm1_master (void * key, size_t len, struct ntlm_buf * session, struct ntlm_buf * master)
Generates an NTLMv1 session random with assosited session master key.Parameters:
key the ntlm v1 key
len length of key
session generated session nonce, should be freed with heim_ntlm_free_buf().
master calculated session master key, should be freed with heim_ntlm_free_buf().
len length of key
session generated session nonce, should be freed with heim_ntlm_free_buf().
master calculated session master key, should be freed with heim_ntlm_free_buf().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
int heim_ntlm_build_ntlm2_master (void * key, size_t len, struct ntlm_buf * blob, struct ntlm_buf * session, struct ntlm_buf * master)
Generates an NTLMv2 session random with associated session master key.Parameters:
key the NTLMv2 key
len length of key
blob the NTLMv2 'blob'
session generated session nonce, should be freed with heim_ntlm_free_buf().
master calculated session master key, should be freed with heim_ntlm_free_buf().
len length of key
blob the NTLMv2 'blob'
session generated session nonce, should be freed with heim_ntlm_free_buf().
master calculated session master key, should be freed with heim_ntlm_free_buf().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
int heim_ntlm_calculate_lm2 (const void * key, size_t len, const char * username, const char * target, const unsigned char serverchallenge[8], unsigned char ntlmv2[16], struct ntlm_buf * answer)
Calculate LMv2 responseParameters:
key the ntlm key
len length of key
username name of the user, as sent in the message, assumed to be in UTF8.
target the name of the target, assumed to be in UTF8.
serverchallenge challenge as sent by the server in the type2 message.
ntlmv2 calculated session key
answer ntlm response answer, should be freed with heim_ntlm_free_buf().
len length of key
username name of the user, as sent in the message, assumed to be in UTF8.
target the name of the target, assumed to be in UTF8.
serverchallenge challenge as sent by the server in the type2 message.
ntlmv2 calculated session key
answer ntlm response answer, should be freed with heim_ntlm_free_buf().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
int heim_ntlm_calculate_ntlm1 (void * key, size_t len, unsigned char challenge[8], struct ntlm_buf * answer)
Calculate NTLMv1 response hashParameters:
key the ntlm v1 key
len length of key
challenge sent by the server
answer calculated answer, should be freed with heim_ntlm_free_buf().
len length of key
challenge sent by the server
answer calculated answer, should be freed with heim_ntlm_free_buf().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
Examples:
test_ntlm.c.
int heim_ntlm_calculate_ntlm2 (const void * key, size_t len, const char * username, const char * target, const unsigned char serverchallenge[8], const struct ntlm_buf * infotarget, unsigned char ntlmv2[16], struct ntlm_buf * answer)
Calculate NTLMv2 responseParameters:
key the ntlm key
len length of key
username name of the user, as sent in the message, assumed to be in UTF8.
target the name of the target, assumed to be in UTF8.
serverchallenge challenge as sent by the server in the type2 message.
infotarget infotarget as sent by the server in the type2 message.
ntlmv2 calculated session key
answer ntlm response answer, should be freed with heim_ntlm_free_buf().
len length of key
username name of the user, as sent in the message, assumed to be in UTF8.
target the name of the target, assumed to be in UTF8.
serverchallenge challenge as sent by the server in the type2 message.
infotarget infotarget as sent by the server in the type2 message.
ntlmv2 calculated session key
answer ntlm response answer, should be freed with heim_ntlm_free_buf().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
Examples:
test_ntlm.c.
int heim_ntlm_decode_targetinfo (const struct ntlm_buf * data, int ucs2, struct ntlm_targetinfo * ti)
Decodes an NTLM targetinfo messageParameters:
data input data buffer with the encode NTLM
targetinfo message
ucs2 if the strings should be encoded with ucs2 (selected by flag in message).
ti the decoded target info, should be freed with heim_ntlm_free_targetinfo().
ucs2 if the strings should be encoded with ucs2 (selected by flag in message).
ti the decoded target info, should be freed with heim_ntlm_free_targetinfo().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
Examples:
test_ntlm.c.
int heim_ntlm_encode_targetinfo (const struct ntlm_targetinfo * ti, int ucs2, struct ntlm_buf * data)
Encodes a ntlm_targetinfo message.Parameters:
ti the ntlm_targetinfo message to encode.
ucs2 ignored
data is the return buffer with the encoded message, should be freed with heim_ntlm_free_buf().
ucs2 ignored
data is the return buffer with the encoded message, should be freed with heim_ntlm_free_buf().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
Examples:
test_ntlm.c.
int heim_ntlm_encode_type1 (const struct ntlm_type1 * type1, struct ntlm_buf * data)
Encodes an ntlm_type1 message.Parameters:
type1 the ntlm_type1 message to encode.
data is the return buffer with the encoded message, should be freed with heim_ntlm_free_buf().
data is the return buffer with the encoded message, should be freed with heim_ntlm_free_buf().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
Examples:
test_ntlm.c.
int heim_ntlm_encode_type2 (const struct ntlm_type2 * type2, struct ntlm_buf * data)
Encodes an ntlm_type2 message.Parameters:
type2 the ntlm_type2 message to encode.
data is the return buffer with the encoded message, should be freed with heim_ntlm_free_buf().
data is the return buffer with the encoded message, should be freed with heim_ntlm_free_buf().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
Examples:
test_ntlm.c.
int heim_ntlm_encode_type3 (const struct ntlm_type3 * type3, struct ntlm_buf * data, size_t * mic_offset)
Encodes an ntlm_type3 message.Parameters:
type3 the ntlm_type3 message to encode.
data is the return buffer with the encoded message, should be
mic_offset offset of message integrity code freed with heim_ntlm_free_buf().
data is the return buffer with the encoded message, should be
mic_offset offset of message integrity code freed with heim_ntlm_free_buf().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
Examples:
test_ntlm.c.
void heim_ntlm_free_buf (struct ntlm_buf * p)
heim_ntlm_free_buf frees the ntlm bufferParameters:
p buffer to be freed
Examples:
test_ntlm.c.
void heim_ntlm_free_targetinfo (struct ntlm_targetinfo * ti)
Frees the ntlm_targetinfo messageParameters:
ti targetinfo to be freed
Examples:
test_ntlm.c.
void heim_ntlm_free_type1 (struct ntlm_type1 * data)
Frees the ntlm_type1 messageParameters:
data message to be freed
Examples:
test_ntlm.c.
void heim_ntlm_free_type2 (struct ntlm_type2 * data)
Frees the ntlm_type2 messageParameters:
data message to be freed
Examples:
test_ntlm.c.
void heim_ntlm_free_type3 (struct ntlm_type3 * data)
Frees the ntlm_type3 messageParameters:
data message to be freed
Examples:
test_ntlm.c.
int heim_ntlm_keyex_unwrap (struct ntlm_buf * baseKey, struct ntlm_buf * encryptedSession, struct ntlm_buf * session)
Given a key and encrypted session, unwrap the session keyParameters:
baseKey the sessionBaseKey
encryptedSession encrypted session, type3.session field.
session generated session nonce, should be freed with heim_ntlm_free_buf().
encryptedSession encrypted session, type3.session field.
session generated session nonce, should be freed with heim_ntlm_free_buf().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
int heim_ntlm_nt_key (const char * password, struct ntlm_buf * key)
Calculate the NTLM key, the password is assumed to be in UTF8.Parameters:
password password to calcute the key for.
key calcuted key, should be freed with heim_ntlm_free_buf().
key calcuted key, should be freed with heim_ntlm_free_buf().
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
Examples:
test_ntlm.c.
int heim_ntlm_ntlmv2_key (const void * key, size_t len, const char * username, const char * target, int upper_case_target, unsigned char ntlmv2[16])
Generates an NTLMv2 session key.Parameters:
key the ntlm key
len length of key
username name of the user, as sent in the message, assumed to be in UTF8.
target the name of the target, assumed to be in UTF8.
upper_case_target upper case the target, should not be used only for legacy systems
ntlmv2 the ntlmv2 session key
len length of key
username name of the user, as sent in the message, assumed to be in UTF8.
target the name of the target, assumed to be in UTF8.
upper_case_target upper case the target, should not be used only for legacy systems
ntlmv2 the ntlmv2 session key
Returns:
0 on success, or an error code on failure.
int heim_ntlm_verify_ntlm2 (const void * key, size_t len, const char * username, const char * target, time_t now, const unsigned char serverchallenge[8], const struct ntlm_buf * answer, struct ntlm_buf * infotarget, unsigned char ntlmv2[16])
Verify NTLMv2 response.Parameters:
key the ntlm key
len length of key
username name of the user, as sent in the message, assumed to be in UTF8.
target the name of the target, assumed to be in UTF8.
now the time now (0 if the library should pick it up itself)
serverchallenge challenge as sent by the server in the type2 message.
answer ntlm response answer, should be freed with heim_ntlm_free_buf().
infotarget infotarget as sent by the server in the type2 message.
ntlmv2 calculated session key
len length of key
username name of the user, as sent in the message, assumed to be in UTF8.
target the name of the target, assumed to be in UTF8.
now the time now (0 if the library should pick it up itself)
serverchallenge challenge as sent by the server in the type2 message.
answer ntlm response answer, should be freed with heim_ntlm_free_buf().
infotarget infotarget as sent by the server in the type2 message.
ntlmv2 calculated session key
Returns:
In case of success 0 is return, an errors, a errno in
what went wrong.
First check with the domain as the client passed it to the function.
Second check with domain uppercased.
Third check with empty domain.
Examples:
test_ntlm.c.
Author
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