Method of consortium hashing

A method of sharing Personal Identifying Information (“PII”) comprising the steps:

• inputting, by a search institution, one or more fields of PII data to be matched;
• normalizing said one or more fields of PII data into a standard format;
• generating, from said one or more fields of PII data that has been converted into said standard format, one or more data combinations of said PII data;
• creating a Bloom filter, wherein said Bloom filter concatenates said one or more data combinations of said PII data;
• hashing said one or more concatenated data combinations of said PII data by multiplying said data combinations of said PII data, such that one or more Bloom filter combinations are created;
• encoding each of said one or more Bloom filter combinations, such that one or more converted combinations are created;
• sending said one or more converted combinations to a matching service;
• hashing by a private key said one or more converted combinations, wherein said private key is stored by said matching service;
• matching, by said matching service, said one or more hashed converted combinations with a stored hashed file, wherein said stored hashed file is stored on said matching service;
• reporting, by said matching service, to said search institution whether said hashed converted combinations match any of said stored hashed file;
• wherein said PII comprises one or more of:
• a social security number, a full name, an email address, a phone number, a passport information, a driver's license number, a financial account number, and a credit card number;
• wherein said standard format comprises:
• a name, wherein one or more characters of said name are converted to lowercase and any spaces are removed;
• a date of birth, wherein said date of birth comprises a year, a month, and a day, wherein said year is a four-digit year, wherein said month is a two-digit month, and wherein said day is a two-digit day, and wherein said date of birth is formatted as year, month, day;
• a phone number, wherein any non-numerical characters are removed;
• an email address, wherein said email address comprises a plurality of characters, wherein said characters are converted to lowercase characters;
• a social security number, wherein any non-numerical characters of said social security number are removed;
• a bank account number, wherein any non-numerical characters of said bank account number are removed;
• and
• a routing number, wherein any non-numerical characters of said routing number are removed;
• wherein said generating comprises an algorithm that generates said one or more combined fields of PII, such that one or more combined fields of PII comprise all possible combinations of said one or more fields of PII data;
• wherein said private key is a HMAC-SHA256 type key;
• wherein said hashing said one or more concatenated data combinations comprises a MurmurHashing protocol;
• wherein said encoding each of said one or more Bloom filter combinations comprises a Base64encoding protocol;
• and
• wherein said search institution is a financial technology company, financial institution, or crypto exchange.