Blindfold: Store Operation
The "store" operation is used to encrypt data for storage on a cluster of nodes.
Max: 4096 bytes0/4096
Node Configuration
12345678
23
min: 2, max: 3
KEY TYPE
SecretKey Seed
Same seed = same key
OUTPUT
STORE OPERATION REFERENCE
SINGLE NODE
Implementation: XSalsa20 stream cipher + Poly1305 MAC
Types: 32-bit signed integer, UTF-8 string (4096 bytes max)
Security: Authenticated encryption
MULTIPLE NODES
Implementation: XOR-based secret sharing
Types: 32-bit signed integer, UTF-8 string (4096 bytes max)
Security: Distributed across cluster nodes
KEY TYPES
SecretKey:Contains blinding masks for exclusive access control
ClusterKey:Coordination key without cryptographic material
THRESHOLD
Using a n-of-m threshold, we try all combinations of n shares. The malicious node appears in all failing decryptions and none of the successful ones.