The two-volume set LNCS 9722 and LNCS 9723 constitutes the refereed proceedings of the 21st Australasian Conference on Information Security and Privacy, ACISP 2016, held in Melbourne, VIC, Australia, in July 2016. The 52 revised full and 8 short papers presented together with 6 invited papers in this double volume were carefully revised and selected from 176 submissions. The papers of Part I (LNCS 9722) are organized in topical sections on National Security Infrastructure; Social Network Security; Bitcoin Security; Statistical Privacy; Network Security; Smart City Security; Digital Forensics; Lightweight Security; Secure Batch Processing; Pseudo Random/One-Way Function; Cloud Storage Security; Password/QR Code Security; and Functional Encryption and Attribute-Based Cryptosystem. Part II (LNCS 9723) comprises topics such as Signature and Key Management; Public Key and Identity-Based Encryption; Searchable Encryption; Broadcast Encryption; Mathematical Primitives; Symmetric Cipher; Public Key and Identity-Based Encryption; Biometric Security; Digital Forensics; National Security Infrastructure; Mobile Security; Network Security; and Pseudo Random/One-Way Function.

The two-volume set LNCS 9722 and LNCS 9723 constitutes the refereed proceedings of the 21st Australasian Conference on Information Security and Privacy, ACISP 2016, held in Melbourne, VIC, Australia, in July 2016.

The 52 revised full and 8 short papers presented together with 6 invited papers in this double volume were carefully reviewed and selected from 176 submissions. The papers of Part I (LNCS 9722) are organized in topical sections on National Security Infrastructure; Social Network Security; Bitcoin Security; Statistical Privacy; Network Security; Smart City Security; Digital Forensics; Lightweight Security; Secure Batch Processing; Pseudo Random/One-Way Function; Cloud Storage Security; Password/QR Code Security; and Functional Encryption and Attribute-Based Cryptosystem. Part II (LNCS 9723) comprises topics such as Signature and Key Management; Public Key and Identity-Based Encryption; Searchable Encryption; Broadcast Encryption; Mathematical Primitives; Symmetric Cipher; Public Key and Identity-Based Encryption; Biometric Security; Digital Forensics; National Security Infrastructure; Mobile Security; Network Security; and Pseudo Random / One-Way Function.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The two-volume set LNCS 9722 and LNCS 9723 constitutes the refereed proceedings of the 21st Australasian Conference on Information Security and Privacy, ACISP 2016, held in Melbourne, VIC, Australia, in July 2016. The 52 revised full and 8 short papers presented together with 6 invited papers in this double volume were carefully revised and selected from 176 submissions. The papers of Part I (LNCS 9722) are organized in topical sections on National Security Infrastructure; Social Network Security; Bitcoin Security; Statistical Privacy; Network Security; Smart City Security; Digital Forensics; Lightweight Security; Secure Batch Processing; Pseudo Random/One-Way Function; Cloud Storage Security; Password/QR Code Security; and Functional Encryption and Attribute-Based Cryptosystem. Part II (LNCS 9723) comprises topics such as Signature and Key Management; Public Key and Identity-Based Encryption; Searchable Encryption; Broadcast Encryption; Mathematical Primitives; Symmetric Cipher; Public Key and Identity-Based Encryption; Biometric Security; Digital Forensics; National Security Infrastructure; Mobile Security; Network Security; and Pseudo Random/One-Way Function.

The two-volume set LNCS 9722 and LNCS 9723 constitutes the refereed proceedings of the 21st Australasian Conference on Information Security and Privacy, ACISP 2016, held in Melbourne, VIC, Australia, in July 2016.

The 52 revised full and 8 short papers presented together with 6 invited papers in this double volume were carefully reviewed and selected from 176 submissions. The papers of Part I (LNCS 9722) are organized in topical sections on National Security Infrastructure; Social Network Security; Bitcoin Security; Statistical Privacy; Network Security; Smart City Security; Digital Forensics; Lightweight Security; Secure Batch Processing; Pseudo Random/One-Way Function; Cloud Storage Security; Password/QR Code Security; and Functional Encryption and Attribute-Based Cryptosystem. Part II (LNCS 9723) comprises topics such as Signature and Key Management; Public Key and Identity-Based Encryption; Searchable Encryption; Broadcast Encryption; Mathematical Primitives; Symmetric Cipher; Public Key and Identity-Based Encryption; Biometric Security; Digital Forensics; National Security Infrastructure; Mobile Security; Network Security; and Pseudo Random / One-Way Function.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.

The total of 106 full papers presented in these proceedings was carefully reviewed and selected from 375 submissions. The papers were organized in topical sections as follows:  

Part I: Secure Multi-party computation; threshold cryptography; .  

Part II: proof systems - succinctness and foundations; anonymity; 

Part III: quantum cryptanalysis; symmetric-key cryptanalysis; 

Part IV: cryptanalysis of post-quantum and public-key systems; side-channels; quantum random oracle model; 

Part V: functional encryption, commitments and proofs; secure messaging and broadcast; 

Part VI: homomorphic encryption; encryption with special functionalities; security proofs andsecurity models; 

Part VII: post-quantum cryptography; 

Part VIII: quantum cryptography; key exchange; symmetric-key design.