What is searchable encryption scheme?

Searchable encryption allows an encrypter to send a message, in an encrypted form, to a decryptor who can delegate to a third party to search the encrypted message for keywords without losing encrypted message content’s privacy.

What is dynamic searchable encryption?

Searchable symmetric encryption (SSE) enables a client to perform searches over its outsourced encrypted files while preserving privacy of the files and queries. Dynamic schemes, where files can be added or removed, leak more information than static schemes.

What does SSE stand for in encryption?

Searchable symmetric encryption (SSE) allows a party to outsource the storage of his data to another party in a private manner, while maintaining the ability to selectively search over it.

How does attribute based encryption work?

Attribute-based encryption is a type of public-key encryption in which the secret key of a user and the ciphertext are dependent upon attributes (e.g. the country in which they live, or the kind of subscription they have).

How does homomorphic encryption work?

Homomorphic encryption is a cryptographic method that allows mathematical operations on data to be carried out on cipher text, instead of on the actual data itself. The cipher text is an encrypted version of the input data (also called plain text). It is operated on and then decrypted to obtain the desired output.

What is dynamic searchable symmetric encryption?

Dynamic Searchable Symmetric Encryption (DSSE) enables a client to perform keyword queries and update operations on the encrypted file collections. DSSE has several important applications such as privacy-preserving data outsourcing for computing clouds.

What is SSE-S3?

SSE-S3 is the simplest method to use as encryption keys are handled and managed by AWS. SSE-S3 is based on AES-256 encryption algorithm, a symetric cypher. You cannot access this key or use it manually for any other encryption processing. The key is itself encrypted with a master key that is regularly rotated.

What is KP Abe?

Key-policy attribute-based encryption (KP-ABE) is an important type of ABE, which enables senders to encrypt messages under a set of attributes and private keys are associated with access structures that specify which ciphertexts the key holder will be allowed to decrypt.