This book constitutes the refereed proceedings of the 7th International Conference on Provable Security, ProvSec 2013, held in Melaka, Malaysia, in October 2013. The 18 full papers presented together with 1 invited talk were carefully reviewed and selected from 44 submissions. The papers cover the following topics: key exchange protocols, security models, signature and signcryption schemes, authenticated encryption, theory, and public key encryption.

On Modeling Terrorist Frauds: Addressing Collusion in Distance Bounding Protocols.- Authenticated Key Exchange Protocols Based on Factoring Assumption.- Efficient, Pairing-Free, Authenticated Identity Based Key Agreement in a Single Round.- CIL Security Proof for a Password-Based Key Exchange.- Non Observability in the Random Oracle Model.- Indistinguishability against Chosen Ciphertext Verification Attack Revisited: The Complete Picture.- Input-Aware Equivocable Commitments and UC-secure Commitments with Atomic Exchanges.- Towards Anonymous Ciphertext Indistinguishability with Identity Leakage.- k-Time Proxy Signature: Formal Definition and Efficient Construction.- Anonymous Signcryption against Linear Related-Key Attacks.- Improved Authenticity Bound of EAX, and Refinements.- The Security of the OCB Mode of Operation without the SPRP Assumption.- A Short Universal Hash Function from Bit Rotation, and Applications to Blockcipher Modes.- How to Remove the Exponent GCD in HK09.- Translation-Randomizable Distributions via Random Walks.- RKA Secure PKE Based on the DDH and HR Assumptions.- Computationally Efficient Dual-Policy Attribute Based Encryption with Short Ciphertext.- Factoring-Based Proxy Re-Encryption Schemes.- Towards a Secure Certificateless Proxy Re-Encryption Scheme.