SEC_TRAFFIC_SECRETS structure (sspi.h)
Contains the traffic secrets for a connection.
Syntax
typedef struct _SEC_TRAFFIC_SECRETS {
wchar_t SymmetricAlgId[SZ_ALG_MAX_SIZE];
wchar_t ChainingMode[SZ_ALG_MAX_SIZE];
wchar_t HashAlgId[SZ_ALG_MAX_SIZE];
unsigned short KeySize;
unsigned short IvSize;
unsigned short MsgSequenceStart;
unsigned short MsgSequenceEnd;
SEC_TRAFFIC_SECRET_TYPE TrafficSecretType;
unsigned short TrafficSecretSize;
unsigned char TrafficSecret[ANYSIZE_ARRAY];
} SEC_TRAFFIC_SECRETS, *PSEC_TRAFFIC_SECRETS;
Members
SymmetricAlgId[SZ_ALG_MAX_SIZE]
THe negotiated symmetric key algorithm (e.g. BCRYPT_AES_ALGORITHM).
ChainingMode[SZ_ALG_MAX_SIZE]
The negotiated symmetric key algorithm chaining mode (e.g. BCRYPT_CHAIN_MODE_GCM or BCRYPT_CHAIN_MODE_CCM).
HashAlgId[SZ_ALG_MAX_SIZE]
The negotiated hash algorithm (e.g. BCRYPT_SHA256_ALGORITHM or BCRYPT_SHA384_ALGORITHM).
KeySize
They size (in bytes) of the symmetric key to derive from this traffic secret.
IvSize
The size (in bytes) of the IV to derive from this traffic secret.
MsgSequenceStart
The offset of the first byte of the TLS message sequence to be protected with a key derived from TrafficSecret. Use 0 to indicate the first byte of the buffer.
MsgSequenceEnd
The offset of the last byte of the TLS message sequence to be protected with a key derived from TrafficSecret. Use 0 if the secret is for the encryption of application data or decryption of incoming records.
TrafficSecretType
The type of traffic secret from the TRAFFIC_SECRET_TYPE enumeration.
TrafficSecretSize
The size (in bytes) of the traffic secret.
TrafficSecret[ANYSIZE_ARRAY]
Traffic secret of type TrafficSecretType, TrafficSecretSize bytes long, used to derive write key and IV for message protection.
Requirements
| Requirement | Value |
|---|---|
| Header | sspi.h |