Add SHA family content for the back-end roadmap (#1257)

content/roadmaps/101-backend/content/111-web-security-knowledge/101-sha-family.md

@@ -1 +1,12 @@
-# Sha family
+# SHA family
+
+SHA (Secure Hash Algorithms) is a family of cryptographic hash functions created by the NIST (National Institute of Standards and Technology). The family includes:
+- SHA-0: Published in 1993, this is the first algorithm in the family. Shortly after its release, it was discontinued for an undisclosed significant flaw.
+- SHA-1: Created to replace SHA-0 and which resembles MD5, this algorithm has been considered insecure since 2010.
+- SHA-2: This isn't an algorithm, but a set of them, with SHA-256 and SHA-512 being the most popular. SHA-2 is still secure and widely used.
+- SHA-3: Born in a competition, this is the newest member of the family. SHA-3 is very secure and doesn't carry the same design flaws as its brethren.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://en.wikipedia.org/wiki/SHA-1'>Wikipedia - SHA-1</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://en.wikipedia.org/wiki/SHA-2'>Wikipedia - SHA-2</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://en.wikipedia.org/wiki/SHA-3'>Wikipedia - SHA-3</BadgeLink>