put-eosio-contract

Smart contract deployable to EOS and EOSIO chains.

Table Structure: keyval

id	owner (account)	key (string)	value (string)
1	dataproofeos	max_signups	100
2	dataproofeos	signup_uri	https://example.tld
3	anotheracct	encrypted_hash	4db268bbaad225a0a

API

insert(account owner, string key, string value)

• Inserts a new entry into keyval with corresponding account, key, and value.
• There can be keys of same value (so long as they are not from the same account).
• Authorized account owner calls insert (ie: anotheracct can only add keys for himself).
• Contract owner can call insert with any account owner.
• Caller pays for data storage.

update(account owner, string key, string value)

• Updates existing into keyval with corresponding account, key, and value.
• Authorized account owner calls update (ie: anotheracct can only add keys for himself).
• Contract owner cannot call update with any account owner.

rekey(account owner, string key, string new_key)

• Changes the key string for an existing key.
• Authorized account owner calls rekey (ie: anotheracct can only rekey keys for himself).
• Fails if key not found.

delete(account owner, string key)

• Deletes entry in keyval matching account and key.
• Authorized account owner calls delete (ie: anotheracct can only delete keys for himself).
• Contract owner cannot call delete with any account owner.

TBD

• what is the maximum string size? length ( should be enforced by libs )
• does key column need to be optimized?