Eoyc

    Hash & Digest Encoders

    Hash functions create fixed-size outputs (digests) from variable-size inputs. They are one-way functions - you cannot decode them back to the original.

    MD5

    Algorithm: MD5 (Message Digest Algorithm 5)

    Produces a 128-bit (32 hexadecimal characters) hash value. Note: MD5 is not cryptographically secure and should not be used for security purposes.

    Usage

    echo "password" | eoyc -e "md5"
# Output: 5f4dcc3b5aa765d61d8327deb882cf99

    Output Format

    Hexadecimal string (32 characters)

    SHA1

    Algorithm: SHA-1 (Secure Hash Algorithm 1)

    Produces a 160-bit hash value, typically rendered as Base64 for compact representation.

    Usage

    echo "test" | eoyc -e "sha1"
# Output: qUqP5cyxm6YcTAhz05Hph5gvu9M=

    Output Format

    Base64 encoded string

    sha1-hex

    Same as SHA1 but outputs in hexadecimal format.

    Usage

    echo "test" | eoyc -e "sha1-hex"
# Output: a94a8fe5ccb19ba61c4c0873d391e987982fbbd3

    Output Format

    Hexadecimal string (40 characters)

    SHA256

    Algorithm: SHA-256 (Secure Hash Algorithm 256-bit)

    Produces a 256-bit hash value, rendered as Base64.

    Usage

    echo "test" | eoyc -e "sha256"
# Output: n4bQgYhMfWWaL+qgxVrQFaO/TxsrC4Is0V1sFbDwCgg=

    Output Format

    Base64 encoded string

    Use Cases

    • Password hashing (with salt)
    • Data integrity verification
    • Digital signatures

    sha256-hex

    Same as SHA256 but outputs in hexadecimal format.

    Usage

    echo "test" | eoyc -e "sha256-hex"
# Output: 9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08

    Output Format

    Hexadecimal string (64 characters)

    SHA512

    Algorithm: SHA-512 (Secure Hash Algorithm 512-bit)

    Produces a 512-bit hash value, rendered as Base64.

    Usage

    echo "test" | eoyc -e "sha512"
# Output: 7iaw3Ur350mqGo7jwQrpkj9hiYB3Lkc/iBml1JQODbJ6wYX4oOHV+E+IvIh/1nsUNzLDBMxfqa2Ob1f1ACio/w==

    Output Format

    Base64 encoded string

    sha512-hex

    Same as SHA512 but outputs in hexadecimal format.

    Usage

    echo "test" | eoyc -e "sha512-hex"
# Output: ee26b0dd4af7e749aa1a8ee3c10ae9923f618980772e473f8819a5d4940e0db27ac185f8a0e1d5f84f88bc887fff5b143712c026c914a1acd0c1d0e7c5e5b48e

    Output Format

    Hexadecimal string (128 characters)

    Combining Hashes in Chains

    # MD5 then SHA256
echo "data" | eoyc -e "md5>sha256"

# Base64 encode before hashing
echo "data" | eoyc -e "base64>sha512"

# Multiple hash transformations
echo "data" | eoyc -e "md5>base64>sha1"

    Security Considerations

    • MD5: Not secure for cryptographic purposes, use SHA-256 or higher
    • SHA-1: Deprecated for security-critical applications, use SHA-256 or higher
    • SHA-256/SHA-512: Recommended for security applications
    • Always use salts when hashing passwords