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blog/posts/privacy-pass.md
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@ -70,9 +70,9 @@ The organization then signs it, indicating you're a valid customer and you're al
Later, when you're presented with a request to authenticate as an active subscriber of PrivacyGuides+, you unwrap the envelope and discard it along with the carbon paper. You rewrap it in a new envelope with a window showing the signature and a different pseudonym, and the requester can then be sure that you're allowed to access PrivacyGuides+. Later, when you're presented with a request to authenticate as an active subscriber of PrivacyGuides+, you unwrap the envelope and discard it along with the carbon paper. You rewrap it in a new envelope with a window showing the signature and a different pseudonym, and the requester can then be sure that you're allowed to access PrivacyGuides+.
![A diagram showing an envelope being wrapped in carbon paper, transfered to an organization, then passing over a boundary representing the unlinkability between the two transactions. Then the envelope is unwrapped, put in a new envelope with a window showing the signature from the previous organization, and presented to a different organization.](../assets/images/privacy-pass/Blind_signatures.png) ![A diagram showing an envelope being wrapped in carbon paper, transfered to an organization, then passing over a boundary representing the unlinkability between the two transactions. Then the envelope is unwrapped, put in a new envelope with a window showing the signature from the previous organization, and presented to a different organization.](../assets/images/privacy-pass/blind-signatures.webp)
<small aria-hidden="true">Illustration: David Chaum</small> <small aria-hidden="true">Illustration: [David Chaum](https://dl.acm.org/doi/pdf/10.1145/4372.4373)</small>
This system relies on the same strong cryptography that tried and true systems use, with the difference being the unlinkability between the credential issuer and the credential receiver. This system relies on the same strong cryptography that tried and true systems use, with the difference being the unlinkability between the credential issuer and the credential receiver.