HashCash
HashCash
- September 13, 2021
- Posted by: Nicola Selenu

Hash cash is payment in burnt CPU cycles by calculating n-bit partial hash collisions on chosen texts.
The idea of using partial hashes is that they can be made arbitrarily expensive to compute (by choosing the desired number of bits of collision), and yet can be verified instantly. This can be used as the basis for an e-cash system measured in burnt CPU cycles. Such cash systems can be used to throttle systematic abuses of un-metered internet resources.
« Back to Glossary IndexAuthor:Nicola Selenu
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Deliverability Glossary
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« Back to Glossary IndexHashCash
Hash cash is payment in burnt CPU cycles by calculating n-bit partial hash collisions on chosen texts.
The idea of using partial hashes is that they can be made arbitrarily expensive to compute (by choosing the desired number of bits of collision), and yet can be verified instantly. This can be used as the basis for an e-cash system measured in burnt CPU cycles. Such cash systems can be used to throttle systematic abuses of un-metered internet resources.
« Back to Glossary IndexAuthor:Nicola Selenu
Email Service Providers Handbook
The most comprehensive “Handbook of Email Service Providers“!
SPAMASSASSIN RULES
All SpamAssassin rules in one place, EXPLAINED!
SMTP COMMANDS
& REPLY CODES
All SMTP/ESMTP commands and reply codes in one place, EXPLAINED!
Free DNS Tool
Check the DNS records of your domain with our free DNS tool.
Deliverability Glossary
The most comprehensive Email Deliverability and Marketing Glossary!
« Back to Glossary Index