MTProto encryption protocol

E357597

cryptographic protocol secure messaging protocol

MTProto encryption protocol is Telegram’s custom-designed cryptographic protocol that secures user data and message transmission across its messaging platform.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (7)

Label	Occurrences
MTProto	1
MTProto 1.0	1
MTProto 2.0	1
MTProto encryption protocol canonical	1
MTProto message encryption	1
MTProto protocol specification	1
MTProto transport protocol	1

How this entity was disambiguated

This entity first appeared as the object of triple T3419604 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: MTProto encryption protocol
Context triple: [Telegram, securityFeature, MTProto encryption protocol]

A. Secure Authentication Version 5
Secure Authentication Version 5 is a security enhancement for the DNP3 protocol that provides robust authentication and protection against unauthorized control and cyber attacks in industrial control systems.
B. SSH Encryption Algorithm Names
SSH Encryption Algorithm Names are standardized identifiers used within the SSH protocol to specify which cryptographic ciphers are employed to secure data in transit.
C. ZRTP
ZRTP is a cryptographic key-agreement protocol designed to enable end-to-end encryption for real-time voice and video communications over RTP-based systems.
D. Diffie–Hellman key exchange
Diffie–Hellman key exchange is a foundational cryptographic protocol that enables two parties to securely establish a shared secret over an insecure communication channel.
E. DTLS
DTLS (Datagram Transport Layer Security) is a protocol that provides TLS-like encryption, integrity, and authentication for datagram-based communications such as UDP.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: MTProto encryption protocol
Target entity description: MTProto encryption protocol is Telegram’s custom-designed cryptographic protocol that secures user data and message transmission across its messaging platform.

A. Secure Authentication Version 5
Secure Authentication Version 5 is a security enhancement for the DNP3 protocol that provides robust authentication and protection against unauthorized control and cyber attacks in industrial control systems.
B. SSH Encryption Algorithm Names
SSH Encryption Algorithm Names are standardized identifiers used within the SSH protocol to specify which cryptographic ciphers are employed to secure data in transit.
C. ZRTP
ZRTP is a cryptographic key-agreement protocol designed to enable end-to-end encryption for real-time voice and video communications over RTP-based systems.
D. Diffie–Hellman key exchange
Diffie–Hellman key exchange is a foundational cryptographic protocol that enables two parties to securely establish a shared secret over an insecure communication channel.
E. DTLS
DTLS (Datagram Transport Layer Security) is a protocol that provides TLS-like encryption, integrity, and authentication for datagram-based communications such as UDP.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	cryptographic protocol ⓘ secure messaging protocol ⓘ
designedBy	Telegram ⓘ
documentationURL	https://core.telegram.org/mtproto ⓘ
doesNotProvideProperty	end-to-end encryption for default cloud chats ⓘ
encryptionLayer	MTProto message encryption ⓘ linked to: MTProto encryption protocol
firstUsedBy	Telegram mobile apps ⓘ
hasCriticism	limited external peer review compared to open standards ⓘ use of non-standard cryptographic constructions ⓘ
hasVersion	MTProto 1.0 ⓘ linked to: MTProto encryption protocol MTProto 2.0 ⓘ linked to: MTProto encryption protocol
improvedInVersion	MTProto 2.0 addressed weaknesses of MTProto 1.0 ⓘ
keyDerivation	based on nonces and server salt ⓘ
messageStructure	binary, TL-serialized messages ⓘ
providesProperty	confidentiality ⓘ forward secrecy (in secret chats) ⓘ integrity ⓘ replay protection ⓘ
purpose	client-server communication security ⓘ end-to-end encryption of messages ⓘ protect user data in transit ⓘ
securityModel	custom, non-standard design ⓘ
specificationMaintainedBy	Telegram Messenger LLP ⓘ linked to: Telegram
status	proprietary ⓘ
supportsFeature	cloud chats ⓘ secret chats ⓘ
supportsPlatform	Android ⓘ Linux ⓘ Windows ⓘ iOS ⓘ macOS ⓘ
transportLayer	MTProto transport protocol ⓘ linked to: MTProto encryption protocol
usedBy	Telegram Messenger ⓘ linked to: Telegram
usedFor	VoIP signaling in Telegram ⓘ desktop messaging ⓘ mobile messaging ⓘ
usesConcept	authorization key ⓘ message key ⓘ sequence numbers ⓘ server salt ⓘ
usesHashFunction	SHA-256 ⓘ
usesKeyExchange	Diffie–Hellman ⓘ linked to: Diffie–Hellman key exchange
usesMode	AES-256-IGE ⓘ
usesPrimitive	AES ⓘ linked to: Advanced Encryption Standard Diffie–Hellman key exchange ⓘ RSA ⓘ SHA-256 ⓘ
usesPublicKeyAlgorithm	RSA-2048 ⓘ
usesSerializationFormat	Telegram TL language ⓘ

How these facts were elicited

Referenced by (7)

Full triples — surface form annotated when it differs from this entity's canonical label.

Telegram → securityFeature → MTProto encryption protocol ⓘ

MTProto → hasVersion → MTProto 1.0 ⓘ

subject linked to: MTProto encryption protocol