EncryptedMessage Struct Reference

Encapsulation for encrypted messages exchanged between peers. More...

Collaboration diagram for EncryptedMessage:

Data Fields
struct GNUNET_MessageHeader	header
	Message type is GNUNET_MESSAGE_TYPE_CORE_ENCRYPTED_MESSAGE. More...
uint32_t	iv_seed
	Random value used for IV generation. More...
struct GNUNET_HashCode	hmac
	MAC of the encrypted message (starting at sequence_number), used to verify message integrity. More...
uint32_t	sequence_number
	Sequence number, in network byte order. More...
uint32_t	reserved
	Reserved, always zero. More...
struct GNUNET_TIME_AbsoluteNBO	timestamp
	Timestamp. More...

Detailed Description

Encapsulation for encrypted messages exchanged between peers.

Followed by the actual encrypted data.

Definition at line 81 of file gnunet-service-core_kx.c.

Field Documentation

header

struct GNUNET_MessageHeader EncryptedMessage::header

Message type is GNUNET_MESSAGE_TYPE_CORE_ENCRYPTED_MESSAGE.

Definition at line 86 of file gnunet-service-core_kx.c.

iv_seed

uint32_t EncryptedMessage::iv_seed

Random value used for IV generation.

Definition at line 91 of file gnunet-service-core_kx.c.

Referenced by GSC_KX_encrypt_and_transmit().

hmac

struct GNUNET_HashCode EncryptedMessage::hmac

MAC of the encrypted message (starting at sequence_number), used to verify message integrity.

Everything after this value (excluding this value itself) will be encrypted and authenticated. ENCRYPTED_HEADER_SIZE must be set to the offset of the next field.

Definition at line 100 of file gnunet-service-core_kx.c.

Referenced by GSC_KX_encrypt_and_transmit().

sequence_number

uint32_t EncryptedMessage::sequence_number

Sequence number, in network byte order.

This field must be the first encrypted/decrypted field

Definition at line 106 of file gnunet-service-core_kx.c.

Referenced by GSC_KX_encrypt_and_transmit(), and handle_encrypted().

reserved

uint32_t EncryptedMessage::reserved

Reserved, always zero.

Definition at line 111 of file gnunet-service-core_kx.c.

Referenced by GSC_KX_encrypt_and_transmit().

timestamp

struct GNUNET_TIME_AbsoluteNBO EncryptedMessage::timestamp

Timestamp.

Used to prevent replay of ancient messages (recent messages are caught with the sequence number).

Definition at line 117 of file gnunet-service-core_kx.c.

Referenced by GSC_KX_encrypt_and_transmit(), and handle_encrypted().

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The documentation for this struct was generated from the following file:

• src/service/core/gnunet-service-core_kx.c